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	The	2	(NP* (OP-DEF <>))
2	buy-out	0	(SENTENCE (CLAUSE (CORE (NP (CORE_N (NUC_N (N <>)))) (NUC_N ) (ADVP ))))
3	fell	2	(NUC_N (N <>))
4	through	2	(ADVP (CORE_ADV (NUC_ADV (ADV <>))))
5	when	12	(CLAUSE-PERI* (CLM <>))
6	Citicorp	12	(NP (NP (CORE_N (NUC_N (N-PROP <>)))))
7	and	6	(NP* (CLM <>))
8	Chase	10	(NUC_N* (N-PROP <>))
9	Manhattan	10	(NUC_N* (N-PROP <>))
10	Corp.	6	(NP* (NP (CORE_N (NUC_N (N-PROP <>)))))
11	unexpectedly	12	(CORE* (ADVP-PERI (CORE_ADV (NUC_ADV (ADV <>)))))
12	failed	2	(CORE* (CLAUSE-PERI (CORE (CORE (NP ) (NUC (V <>))))))
13	to	14	(CORE* (CLM <>))
14	obtain	12	(CORE* (CORE (NUC (V <>)) (NP )))
15	bank	16	(NUC_N* (N <>))
16	financing	14	(NP (CORE_N (NUC_N (N <>))))
17	.	0	(SENTENCE (. <>))