nltk.ImmutableProbabilisticTree.label¶

ImmutableProbabilisticTree.label()¶

Return the node label of the tree.

>>> t = Tree.fromstring('(S (NP (D the) (N dog)) (VP (V chased) (NP (D the) (N cat))))')
>>> t.label()
'S'

Returns:	the node label (typically a string)
Return type:	any