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butsugiri/gist:6b97c3e9e328f3cfc47e2b4bc513bde9

Created December 11, 2016 02:49
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gistfile1.txt
# -*- coding: utf-8 -*-
from nltk.tree import Tree
from nltk.tree import ParentedTree
from nltk.tree import ImmutableParentedTree
def main():
tree = ImmutableParentedTree.fromstring("(ROOT (S (NP (NNP Dog)) (VP (VBZ likes) (NP (NN cat))) (. .)))")
t = tree.leaf_treeposition(1)
x = tree.leaf_treeposition(2)
print([tree[t[:i]].parent() for i in range(1, len(t))])
if __name__ == "__main__":
main()
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