def exclude_relative_clauses(self, sentence, dependencies):
relative_clauses = []
for dep in dependencies:
if dep['dep'] != RCMOD:
sentence_index = Search.find_sentence_index(self.f_full_sentence,
sentence)
dep_in_tree = Search.find_dep_in_tree(self.f_full_sentence,
dep['dependent'])
while dep_in_tree.label() != ROOT:
if sentence.label() == dep_in_tree.label():
part_index = Search.find_sentence_index(self.f_full_sentence,
dep_in_tree)
if sentence_index >= part_index:
break
if dep_in_tree.label() in (SBAR, S, PRN) and dep_in_tree.parent().label() != SBAR:
relative_clauses.append(dep)
break
dep_in_tree = dep_in_tree.parent()
return [dep for dep in dependencies if dep not in relative_clauses]
def extract_PP_spec(cls, origin, full_sentence, element, node_index, dependencies):
to_check = Search.find_dependencies(dependencies, (PREP, PREPC))
rc_mod = Search.find_dependencies(dependencies, RCMOD)
for dep in to_check:
cop = element.f_cop if isinstance(element, Action) else None
if (dep['governor'] == node_index or dep['governorGloss'] == cop) and not cls.part_rc_mod(full_sentence, rc_mod, dep):
dep_in_tree = Search.find_dep_in_tree(full_sentence, dep['dependent'])
phrase_tree = Search.get_full_phrase_tree(dep_in_tree, PP)
if phrase_tree:
phrase_tree = cls.delete_branches(phrase_tree, (S, SBAR))
phrase = " ".join(phrase_tree.leaves())
space_index = phrase.find(" ")
if space_index >= 0:
specific = dep['spec']
if specific:
phrase = phrase[space_index:]
phrase = specific + phrase
spec = Specifier(origin, dep['dependent'], phrase)
spec.f_type = PP
if dep_in_tree.parent().label().startswith(NP):
obj = cls.create_object(origin, full_sentence, dep['dependent'], dependencies)
spec.f_object = obj
spec.f_headWord = specific
element.f_specifiers.append(spec)
def determine_subjects(self, sentence, dependencies, active):
actors = []
main_actor_index = None
# Find main actor
subj = Search.find_dependencies(dependencies, NSUBJ) if active else \
Search.find_dependencies(dependencies, AGENT)
subj = self.exclude_relative_clauses(sentence, subj)
if len(subj) == 0:
self.logger.debug("Sentence contains no subject!")
elif len(subj) == 1:
main_actor_index = subj[0]['dependent']
else:
self.logger.info("Sentence has more then one subject")
self.logger.debug(subj)
# Find all actors
if main_actor_index:
actor = Builder.create_actor(self.f_stanford_sentence,
self.f_full_sentence,
main_actor_index, dependencies)
actor.f_subjectRole = True
actor.f_passive = not active
actors.append(actor)
for new_actor in self.check_conjunctions(dependencies, actor, True, True, active):
new_actor.f_subjectRole = True
new_actor.f_passive = not active
actors.append(new_actor)
return actors
def extract_PP_spec_syntax(cls, origin, full_sentence, element, vphead):
pp_list = Search.find_in_tree(vphead, PP, (SBAR, S, NP, PRN))
for pp in pp_list:
pp_index = Search.find_sentence_index(full_sentence, pp)
spec = Specifier(origin, pp_index, " ".join(pp.leaves()))
spec.f_type = PP
element.f_specifiers.append(spec)
def part_rc_mod(cls, full_sentence, rc_mod, dep):
for rcm in rc_mod:
if rcm['governor'] == dep['dependent']:
dep_in_tree = Search.find_dep_in_tree(full_sentence, dep['dependent'])
phrase_tree = Search.get_full_phrase_tree(dep_in_tree, PP)
phrase_tree = cls.delete_branches(phrase_tree, (S, SBAR))
phrase = " ".join(phrase_tree.leaves())
if phrase in f_conditionIndicators:
return True
return False
def get_PARTMOD_specifiers(cls, origin, full_sentence, node_index, dependencies, element):
to_check = Search.find_dependencies(dependencies, PARTMOD)
for dep in to_check:
if dep['governor'] == node_index:
dep_in_tree = Search.find_dep_in_tree(full_sentence, dep['dependent'])
phrase_tree = Search.get_full_phrase_tree(dep_in_tree, VP)
phrase = phrase_tree.leaves() if phrase_tree else []
spec = Specifier(origin, dep['dependent'], " ".join(phrase))
spec.f_type = PARTMOD
element.f_specifiers.append(spec)
def extract_SBAR_spec(cls, origin, full_sentence, element, phrase_head):
if phrase_head:
sbar_list = Search.find_in_tree(phrase_head, SBAR, [])
phrase_index = Search.find_sentence_index(full_sentence, phrase_head)
for sbar in sbar_list:
sbar_index = Search.find_sentence_index(full_sentence, sbar)
if sbar_index > phrase_index:
spec = Specifier(origin, sbar_index, " ".join(sbar.leaves()))
spec.f_type = SBAR
element.f_specifiers.append(spec)
def check_dobj(cls, node_index, dependencies, action, origin, full_sentence):
to_check = Search.find_dependencies(dependencies, DOBJ)
for dep in to_check:
if dep['governor'] == node_index:
cls.logger.error("Dobj was found in a passive sentence")
node = Search.find_dep_in_tree(full_sentence, dep['dependent'])
spec = Specifier(origin, dep['dependent'], cls.get_full_noun(node, dep['dependent'], dependencies))
spec.f_type = DOBJ
obj = cls.create_object(origin, full_sentence, dep['dependent'], dependencies)
spec.f_object = obj
action.f_specifiers.append(spec)
def find_sub_sentences(self, sentence):
result = Search.find_children(sentence, self.f_sentenceTags)
for child in sentence:
if child.label() in ("PP", "ADVP"):
result.extend(Search.find_children(child,
self.f_sentenceTags))
for grandchild in child:
result.extend(Search.find_children(grandchild,
self.f_sentenceTags))
return result
def extract_RCMOD_spec(cls, origin, full_sentence, element, node_index, dependencies):
to_check = Search.find_dependencies(dependencies, RCMOD)
for dep in to_check:
cop = element.f_cop if isinstance(element, Action) else None
if dep['dependent'] == node_index or dep['dependentGloss'] == cop:
dep_in_tree = Search.find_dep_in_tree(full_sentence, dep['governor'])
phrase_tree = Search.get_full_phrase_tree(dep_in_tree, PP)
if phrase_tree:
phrase_tree = cls.delete_branches(phrase_tree, (S, SBAR))
phrase = " ".join(phrase_tree.leaves())
spec = Specifier(origin, dep['dependent'], phrase)
spec.f_type = RCMOD
element.f_specifiers.append(spec)
def is_active_sentence(self, sentence, dependencies):
subj = Search.find_dependencies(dependencies, (NSUBJ, CSUBJ, DOBJ))
subj = self.exclude_relative_clauses(sentence, subj)
if len(subj) > 0:
return True
subj_pass = Search.find_dependencies(dependencies, (NSUBJPASS,
CSUBJPASS,
AGENT))
subj_pass = self.exclude_relative_clauses(sentence, subj_pass)
if len(subj_pass) > 0:
return False
self.logger.debug("It is not clear whether this sentence is active or passive!")
return False
def find_INFMOD_specifiers(cls, origin, node_index, dependencies, element):
to_check = Search.find_dependencies(dependencies, INFMOD)
name = ""
for dep in to_check:
if dep['governor'] == node_index:
to_check = Search.find_dependencies(dependencies, (AUX, COP, NEG))
for acn in to_check:
if acn['governor'] == dep['dependent']:
name += acn['dependentGloss'] + " "
name += dep['dependentGloss']
spec = Specifier(origin, dep['dependent'], name)
spec.f_type = INFMOD
element.f_specifiers.append(spec)
break
def determine_object(self, sentence, verb, dependencies, active):
objects = []
if verb.f_xcomp:
xcomp_obj = self.determine_object(sentence, verb.f_xcomp, dependencies, active)
if len(xcomp_obj) > 0:
verb.f_xcomp.f_object = xcomp_obj[0]
if not active:
nsubjpass = Search.find_dependencies(dependencies, NSUBJPASS)
nsubjpass = self.exclude_relative_clauses(sentence, nsubjpass)
if len(nsubjpass) == 0:
objs = self.determine_object_from_dobj(verb, dependencies)
objects.extend(objs)
else:
if len(nsubjpass) > 1:
self.logger.debug("Passive sentence with more than one subject!")
dep_index = nsubjpass[0]['dependent']
obj = Builder.create_object(self.f_stanford_sentence, self.f_full_sentence, dep_index, dependencies)
obj.f_subjectRole = True
objects.append(obj)
self.check_np_sub_sentences(dep_index, dependencies, obj)
else:
objs = self.determine_object_from_dobj(verb, dependencies)
objects.extend(objs)
if len(objects) > 0:
conjs = self.check_conjunctions(dependencies, objects[0], True, False, active)
for conj in conjs:
if isinstance(conj, Element):
objects.append(conj)
return objects
def analyze_recursive(self, main_sentence, dependencies):
main_sentence = deepcopy(main_sentence)
sub_sentence_count = self.determine_sub_sentence_count(main_sentence)
if sub_sentence_count == 0:
self.extract_elements(main_sentence, dependencies)
elif sub_sentence_count == 1:
sub_sentence = self.find_sub_sentences(main_sentence)[0]
filtered_dependencies = self.filter_dependencies(sub_sentence,
dependencies)
self.analyze_recursive(sub_sentence, filtered_dependencies)
sub_sentence_index = sub_sentence.treeposition()
del(main_sentence[sub_sentence_index])
deps = [dep for dep in dependencies if dep['dep'] == RCMOD or dep not in filtered_dependencies]
if len(Search.find_dependencies(deps, (NSUBJ, AGENT, NSUBJPASS, DOBJ))) > 0:
self.extract_elements(main_sentence, deps)
else:
sub_sentences = self.find_sub_sentences(main_sentence)
for sub_sentence in sub_sentences:
filtered_dependencies = self.filter_dependencies(sub_sentence,
dependencies)
self.analyze_recursive(sub_sentence, filtered_dependencies)
def combine_actions(self):
for action in self.f_world.f_actions:
reference_action = None
if action.f_actorFrom and isinstance(
action.f_actorFrom.f_reference, Action):
reference_action = action.f_actorFrom.f_reference
elif action.f_object and action.f_object.f_reference:
if isinstance(action.f_object.f_reference, Action):
reference_action = action.f_object.f_reference
else:
reference_action = Search.get_action(
self.f_world.f_actions, action.f_object.f_reference)
if reference_action:
if self.can_be_merged(reference_action, action, False):
self.logger.debug("Merging {} and {}".format(
reference_action, action))
self.merge(reference_action, action, False)
elif self.can_be_merged(reference_action, action, True):
self.logger.debug(
"Copying attributes from {} to {}".format(
reference_action, action))
action.f_actorFrom = reference_action.f_actorFrom
action.f_object = reference_action.f_object
action.f_cop = reference_action.f_cop
action.f_copIndex = reference_action.f_copIndex
def is_negated(cls, node_index, dependencies):
to_check = Search.find_dependencies(dependencies, COP)
index = node_index
for dep in to_check:
if dep['dependent'] == node_index:
index = dep['governor']
break
to_check = Search.find_dependencies(dependencies, NEG)
for dep in to_check:
if dep['governor'] == index:
return True
return False
def get_modifiers(cls, node_index, dependencies):
to_check = Search.find_dependencies(dependencies, (ADVMOD, ACOMP))
for dep in to_check:
if dep['governor'] == node_index:
if dep['governor'] < dep['dependent'] and dep['dependentGloss'] not in f_sequenceIndicators:
return dep['dependent']
def find_determiner(cls, node_index, dependencies, element):
to_check = Search.find_dependencies(dependencies, (POSS, DET))
for dep in to_check:
if dep['governor'] == node_index:
element.f_determiner = dep['dependentGloss']
break
def reference_resolution(self):
to_check = []
to_check.extend(self.f_world.f_actors)
to_check.extend(self.f_world.f_resources)
for obj in to_check:
if obj.f_needsResolve:
self.logger.debug("Resolving {}".format(obj))
sentence_word_id = (obj.f_sentence.f_id, obj.f_word_index)
if sentence_word_id in self.f_reference_map:
target = self.f_reference_map[sentence_word_id]
element = self.to_element(target)
obj.f_reference = element
self.logger.debug(
"Manual resolution of {}".format(element))
else:
sentence_id = obj.f_sentence.f_id
if Processing.is_action_resolution_determiner(obj.f_name):
action = self.find_action(sentence_id, obj)
obj.f_reference = action
self.logger.debug(
"Resolution result: {}".format(action))
else:
animate = self.determine_animate_type(obj)
containing_action = Search.get_action(
self.f_world.get_actions_of_sentence(
obj.f_sentence), obj)
invert_role_match = containing_action.f_cop or Processing.is_RC_pronoun(
obj.f_name)
reference = self.find_reference(
sentence_id, obj, animate, invert_role_match)
obj.f_reference = reference
self.logger.debug(
"Resolution result: {}".format(reference))
def determine_sub_sentence_count(self, sentence):
result = Search.count_children(sentence, self.f_sentenceTags)
if result == 1 and sentence[0].label() == WHNP:
result -= 1
for child in sentence:
if child.label() in (PP, ADVP):
result += Search.count_children(child,
self.f_sentenceTags)
for grandchild in child:
if grandchild.label() == NP:
result += Search.count_children(grandchild,
self.f_sentenceTags)
return result
def check_global_conjunctions(self):
conj = Search.find_dependencies(self.f_dependencies, CONJ)
for dep in conj:
action_from = self.get_action_containing(dep['governor'])
action_to = self.get_action_containing(dep['dependent'])
if action_from and action_to:
if not self.find_conjunction(action_from, dep, action_to):
self.build_link(action_from, dep, action_to)
def create_action_syntax(cls, origin, full_sentence, vphead):
verb_parts = cls.extract_verb_parts(vphead)
index = Search.find_sentence_index(full_sentence, vphead)
action = Action(origin, index, " ".join(verb_parts))
cls.extract_SBAR_spec(origin, full_sentence, action, vphead)
cls.extract_PP_spec_syntax(origin, full_sentence, action, vphead)
cls.logger.debug("Identified action {}".format(action))
return action
def get_specifier_from_dependencies(cls, origin, node_index, dependencies, element, dep_type):
to_check = Search.find_dependencies(dependencies, dep_type)
index = None
name = ""
for dep in to_check:
if dep['governor'] == node_index:
name += dep['dependentGloss'] + " "
conjs = Search.find_dependencies(dependencies, CONJ)
for conj in conjs:
if conj['governor'] == dep['dependent']:
name += conj['spec'] + " " + dep['dependentGloss'] + " "
if not index:
index = dep['dependent']
if index:
name = name[:-1]
spec = Specifier(origin, index, name)
spec.f_type = dep_type
element.f_specifiers.append(spec)
def find_NN_specifiers(cls, origin, node_index, dependencies, element):
cls.get_specifier_from_dependencies(origin, node_index, dependencies, element, NN)
to_check = Search.find_dependencies(dependencies, DEP)
for dep in to_check:
if dep['governor'] == node_index:
if dep['governor'] + 1 != dep['dependent']:
continue
spec = Specifier(origin, dep['dependent'], dep['dependentGloss'])
spec.f_type = NNAFTER
element.f_specifiers.append(spec)
def check_conjunctions(self, dependencies, element, obj, actor, active):
results = []
conjs = Search.find_dependencies(dependencies, CONJ)
cops = Search.find_dependencies(dependencies, COP)
if len(conjs) > 0:
action = element if isinstance(element, Action) else None
for conj in conjs:
x_comp_hit = True if action and action.f_xcomp and conj['governorGloss'] in action.f_xcomp.f_baseForm else False
if (conj['governorGloss'] == element.f_name
and len(Search.filter_by_gov(cops, conj['governor'])) == 0) \
or x_comp_hit:
dep_index = conj['dependent']
if obj:
if actor:
new_ele = Builder.create_actor(
self.f_stanford_sentence,
self.f_full_sentence, dep_index,
dependencies)
else:
new_ele = Builder.create_object(
self.f_stanford_sentence,
self.f_full_sentence, dep_index,
dependencies)
self.check_np_sub_sentences(dep_index, dependencies, new_ele)
else:
if x_comp_hit:
new_ele = copy(action)
new_ele.f_xcomp = Builder.create_action(
self.f_stanford_sentence, self.f_full_sentence,
dep_index, dependencies, True)
else:
new_ele = Builder.create_action(
self.f_stanford_sentence, self.f_full_sentence,
dep_index, dependencies, active)
if conj['dependent'] != conj['governor']:
results.append(new_ele)
self.build_link(element, conj, new_ele)
return results
def create_action(cls, origin, full_sentence, node_index, dependencies, active):
node = Search.find_dep_in_tree(full_sentence, node_index)
action = Action(origin, node_index, node[0])
aux = cls.get_auxiliars(node_index, dependencies)
if len(aux) > 0:
action.f_aux = aux
mod_index = cls.get_modifiers(node_index, dependencies)
if mod_index:
mod = Search.find_dep_in_tree(full_sentence, mod_index)
action.f_mod = mod[0]
action.f_modPos = mod_index
action.f_negated = cls.is_negated(node, dependencies)
cop_index = cls.get_cop(node_index, dependencies)
if cop_index:
cop = Search.find_dep_in_tree(full_sentence, cop_index)
action.f_cop = cop[0]
action.f_copIndex = cop_index
prt = cls.get_prt(node_index, dependencies)
if prt:
action.f_prt = prt
iobj_index = cls.get_iobj(node_index, dependencies)
if iobj_index:
iobj = Search.find_dep_in_tree(full_sentence, iobj_index)
spec = Specifier(origin, iobj_index, " ".join(iobj.leaves()))
spec.f_type = IOBJ
action.f_specifiers.append(spec)
if not active:
cls.check_dobj(node_index, dependencies, action, origin, full_sentence)
to_check = Search.find_dependencies(dependencies, (XCOMP, DEP))
for dep in to_check:
if dep['governor'] == node_index:
dep_in_tree = Search.find_dep_in_tree(full_sentence, dep['dependent'])
if dep['dep'] == DEP:
if dep_in_tree.label()[0] != "V" or dep['dependent'] < dep['governor']:
continue
xcomp = cls.create_action(origin, full_sentence, dep['dependent'], dependencies, True)
action.f_xcomp = xcomp
break
vp_head = Search.get_full_phrase_tree(node, VP)
cls.extract_SBAR_spec(origin, full_sentence, action, vp_head)
cls.extract_PP_spec(origin, full_sentence, action, node_index, dependencies)
cls.extract_RCMOD_spec(origin, full_sentence, action, node_index, dependencies)
cls.logger.debug("Identified action {}".format(action))
return action
def find_node_action(self, dep_index, action_list, deps):
for action in action_list:
if action.f_word_index == dep_index:
return action
cops = Search.find_dependencies(deps, COP)
for dep in cops:
if dep['governor'] == dep_index:
return self.find_node_action(dep['dependent'], action_list,
deps)
return None
def filter_dependencies(self, sentence, dependencies):
filtered_deps = []
start_index = Search.find_sentence_index(self.f_full_sentence, sentence)
end_index = start_index + len(sentence.leaves())
for dep in dependencies:
if dep['dep'] == RCMOD or \
(start_index <= dep['governor'] < end_index
and start_index <= dep['dependent'] < end_index):
filtered_deps.append(dep)
return filtered_deps
def create_object(cls, origin, full_sentence, node_index, dependencies):
node = Search.find_dep_in_tree(full_sentence, node_index)
full_noun = cls.get_full_noun(node, node_index, dependencies)
if WordNetWrapper.person_or_system(full_noun, node[0]) or Processing.can_be_person_pronoun(node[0]):
result = cls.create_internal_actor(origin, full_sentence, node, node_index, dependencies)
else:
result = Resource(origin, node_index, node[0])
cls.determine_noun_specifiers(origin, full_sentence, node, node_index, dependencies, result)
result.f_subjectRole = False
cls.logger.debug("Identified object {}".format(result))
return result
def find_dependants(cls, node_index, dependencies, deps, is_governor):
to_check = Search.find_dependencies(dependencies, deps)
dependants = ""
for dep in to_check:
if is_governor:
if dep['governor'] == node_index:
dependants += dep['dependentGloss'] + " "
else:
if dep['dependent'] == node_index:
dependants += dep['governorGloss'] + " "
return dependants[:-1]
