def match_pattern(tree):
if not tree.is_question():
return None
adjective = pt.find_node(tree, pt.match_POS("JJ"))
who = pt.find_node(adjective, pt.match_word("who"))
if who:
return {"adjective": adjective}
return None
def match_pattern(tree):
if not tree.is_question():
return None
verb_tree = pt.find_node(tree, pt.match_POS("VB", "VBD", "VBG", "VBN", "VBP", "VBZ"))
copular = pt.find_node(verb_tree, pt.match_word("are", "is"))
subject_tree = pt.find_node(verb_tree, pt.match_gram("nsubj"))
object_tree = pt.find_node(verb_tree, pt.match_gram("dobj"))
if copular and verb_tree and subject_tree:
return {"verb_tree": verb_tree, "subject_tree": subject_tree, "object_tree": object_tree}
return None
def match_pattern(tree):
greeting = pt.find_node(tree, pt.match_word("hi", "hello", "greetings", "howdy"))
if greeting:
return {"greeting": greeting.word}
return None
def match_pattern2(tree):
tell = pt.find_node(tree, pt.match_word("tell"))
person = pt.find_node(tell, pt.match_POS("NNP"))
about = pt.find_node(person, pt.match_word("about"))
if about:
return {"name": person, "negative_response": "Who is that?"}
