nltk.ImmutableMultiParentedTree.left_siblings¶

ImmutableMultiParentedTree.left_siblings()¶

A list of all left siblings of this tree, in any of its parent trees. A tree may be its own left sibling if it is used as multiple contiguous children of the same parent. A tree may appear multiple times in this list if it is the left sibling of this tree with respect to multiple parents.

Type:	list(MultiParentedTree)