Treebank Search
A web-interface to TGrep2 on a corpus of parse trees.
Enter a TGrep2 pattern
(toggle TGrep overview)
to search the corpus. Results can be displayed in various ways and
morphological tags of the form TAG[MORPH1,...] and grammatical
functions of the form LABEL-FUNC can optionally be filtered out.
Show surface characteristics of texts
(using style(1))
TGrep2 operators:
A < B A is the parent of (immediately dominates) B.
A > B A is the child of B.
A <N B B is the Nth child of A (the first child is <1).
A >N B A is the Nth child of B (the first child is >1).
A <, B Synonymous with A <1 B.
A >, B Synonymous with A >1 B.
A <-N B B is the Nth-to-last child of A (the last child is <-1).
A >-N B A is the Nth-to-last child of B (the last child is >-1).
A <- B B is the last child of A (synonymous with A <-1 B).
A >- B A is the last child of B (synonymous with A >-1 B).
A <` B B is the last child of A (also synonymous with A <-1 B).
A >` B A is the last child of B (also synonymous with A >-1 B).
A <: B B is the only child of A.
A >: B A is the only child of B.
A << B A dominates B (A is an ancestor of B).
A >> B A is dominated by B (A is a descendant of B).
A <<, B B is a left-most descendant of A.
A >>, B A is a left-most descendant of B.
A <<` B B is a right-most descendant of A.
A >>` B A is a right-most descendant of B.
A <<: B There is a single path of descent from A and B is on it.
A >>: B There is a single path of descent from B and A is on it.
A . B A immediately precedes B.
A , B A immediately follows B.
A .. B A precedes B.
A ,, B A follows B.
A $ B A is a sister of B (and A != B).
A $. B A is a sister of and immediately precedes B.
A $, B A is a sister of and immediately follows B.
A $.. B A is a sister of and precedes B.
A $,, B A is a sister of and follows B.
A = B A is also matched by B.