4

From this list of tags:

SBAR - Clause introduced by a (possibly empty) subordinating conjunction.

This site explains what a subordinating conjunction is. But how can you have an empty subordinating conjunction? What are examples of sentences that should be SBAR not just S?

1

I think you might be being thrown by "clause", which need not mean "sentence". Consider the following pair of sentences.

(1) [S I can't believe [SBAR that John went without me.]]

(2) [S I can't believe [SBAR __ John went without me.]]

In both cases we have a sentence that contains a main and a subordinate clause. In (2), the subordinating conjunction (which goes by several other names as well, e.g. "complementizer") is "empty" (for various, theory-dependent definitions of empty).

2
  • Why don't they just call it a CP and be done with it? Nov 19 '14 at 0:59
  • The S and SBAR notation pre-dates the CP/IP/TP/etc phrasal node labels of recent/current incarnations of generative syntax. Also, I believe, although I hope someone will correct me if I'm wrong, that the computational linguists who first put together the Treebank & tagset (Marcus et al. 1992, I think?) weren't particularly inclined toward the theoretical direction of later-GB, and opted for a slightly more theory-neutral approach (although I suppose that's up for debate).
    – Fred
    Nov 19 '14 at 1:22
0

This link Might Help you: Penn TreeBank II Tags.
PS: As I don't have enough reputation to add this link as a comment, so I am posting link as a answer.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.