RRGbank

To change a label, click on a node to select a different label from a list. The syntactic category and the function tag (before and after the dash "-") must be selected separately by clicking on the corresponding part of the label.
To add a function tag to a node that does not have one yet, drag it from the list of function tags onto the node.
Re-attach a node by dragging and dropping it on a new parent. This can be used to created discontinuous constituents.
Similarly, nodes can be removed and new ones added by dragging to/from below the tree.
Finally, the bracketing can be edited manually in the text box below the tree; press "validate" to update the tree. Whitespace is ignored. Each token must have a dedicated POS tag.

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Supertags

	token	arc	supertag
1	As	0	(SENTENCE (PrDP (PP (CORE_P (NUC_P (P <>)) (CLAUSE )))))
2	Yogi	3	(NUC_N* (N-PROP <>))
3	Berra	5	(NP (CORE_N (NUC_N (N-PROP <>))))
4	might	5	(CORE* (OP-MOD <>))
5	say	1	(CLAUSE (CORE (NP ) (NUC (V <>))))
6	,	5	(CLAUSE* (, <>))
7	it	10	(NP (PRO <>))
8	's	10	(NUC* (AUX-TNS <>))
9	deja	10	(NUC_N* (N <>))
10	vu	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (NP (CORE_N (NUC_N (N <>))))))))
11	all	10	(CORE* (ADVP-PERI (ADV <>) (ADV )))
12	over	11	(ADV <>)
13	again	11	(ADVP-PERI* (ADV <>))
14	.	10	(CORE* (. <>))