def getHead(syntac_sen):
t = ParentedTree(syntac_sen.text)
target = t[0]
while target.height() != 2:
### non-trivial rules: no.1
flag = 0
parent = target
if target.node == "SBARQ":
for ts in target:
if ts.node in ["WHNP", "WHPP", "WHADJP", "WHADVP"] and len(ts) > 1:
target = ts
flag = 1
break
###
if not flag:
rules = head_trace_rule[target.node]
#rules = head_trace_rule.get(target.node, [])
for rule in rules:
if rule[0] == "L":
newTarget = LookByL(target, rule[1:])
elif rule[0] == "R":
newTarget = LookByR(target, rule[1:])
elif rule[0] == "LBP":
newTarget = LookByLBP(target, rule[1:])
elif rule[0] == "RBP":
newTarget = LookByRBP(target, rule[1:])
if newTarget != "":
break
if newTarget == "":
target = target[0]
else:
target = newTarget
#print target
#print target.height()
### non-trivial rules: no.2:
if flag:
leafPos = getLeafPOS(target)
m = re.search(r'(NN|NNS)_(\d+) POS_', leafPos)
if m != None:
lvs = target.leaves()
print m.groups()
target = ParentedTree("("+m.group(1)+" "+lvs[int(m.group(2))]+")")
### non-trivial rules: no.3
if target.height() == 2 and target.leaves()[0] in ["name", "kind", "type", "genre", "group", "part"]:
print parent
for k in parent:
if k.node == "PP":
target = k
break
pr = parent.right_sibling()
for p in pr:
if pr.node == "PP":
target = pr
break
return target.leaves()[0]
def getHead(syntac_sen):
t = ParentedTree(syntac_sen.text)
target = t[0]
while target.height() != 2:
### non-trivial rules: no.1
flag = 0
parent = target
if target.node == "SBARQ":
for ts in target:
if ts.node in ["WHNP", "WHPP", "WHADJP", "WHADVP"
] and len(ts) > 1:
target = ts
flag = 1
break
###
if not flag:
rules = head_trace_rule[target.node]
#rules = head_trace_rule.get(target.node, [])
for rule in rules:
if rule[0] == "L":
newTarget = LookByL(target, rule[1:])
elif rule[0] == "R":
newTarget = LookByR(target, rule[1:])
elif rule[0] == "LBP":
newTarget = LookByLBP(target, rule[1:])
elif rule[0] == "RBP":
newTarget = LookByRBP(target, rule[1:])
if newTarget != "":
break
if newTarget == "":
target = target[0]
else:
target = newTarget
#print target
#print target.height()
### non-trivial rules: no.2:
if flag:
leafPos = getLeafPOS(target)
m = re.search(r'(NN|NNS)_(\d+) POS_', leafPos)
if m != None:
lvs = target.leaves()
print m.groups()
target = ParentedTree("(" + m.group(1) + " " +
lvs[int(m.group(2))] + ")")
### non-trivial rules: no.3
if target.height() == 2 and target.leaves()[0] in [
"name", "kind", "type", "genre", "group", "part"
]:
print parent
for k in parent:
if k.node == "PP":
target = k
break
pr = parent.right_sibling()
for p in pr:
if pr.node == "PP":
target = pr
break
return target.leaves()[0]
