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	Stockholders	9	(NP (CORE_N (NUC_N (N <>))))
2	who	3	(NP-REL (PRO-REL <>))
3	took	1	(NUC_N* (CLAUSE-PERI (PrCS (NP-REL )) (CORE (NUC (V <>)) (NP )) (CORE )))
4	the	5	(NP* (OP-DEF <>))
5	hint	3	(NP (CORE_N (NUC_N (N <>))))
6	and	7	(CORE* (CLM <>))
7	sold	3	(CORE (NUC (V <>)) (NP ))
8	shares	7	(NP (CORE_N (NUC_N (N <>))))
9	escaped	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ))))
10	the	12	(NP* (OP-DEF <>))
11	October	12	(NUC_N* (N-PROP <>))
12	debacle	9	(NP (CORE_N (NUC_N (N <>))))
13	.	0	(SENTENCE (. <>))