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	But	4	(CLAUSE* (CLM <>))
2	state	3	(NUC_N* (N <>))
3	courts	4	(NP (CORE_N (NUC_N (N <>))))
4	upheld	0	(SENTENCE (CLAUSE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ))) (CLAUSE )))
5	a	6	(NP* (OP-DEF <>))
6	challenge	4	(NP (CORE_N (NUC_N (N <>)) (PP )))
7	by	6	(PP (P <>) (NP ))
8	consumer	9	(NUC_N* (N <>))
9	groups	7	(NP (CORE_N (NUC_N (N <>))))
10	to	6	(CORE_N* (PP (P <>) (NP )))
11	the	12	(NP* (OP-DEF <>))
12	commission	15	(NP* (NPIP (NP (CORE_N (NUC_N (N <>))))))
13	's	12	(NP* (POS <>))
14	rate	15	(NUC_N* (N <>))
15	increase	10	(NP (CORE_N (NUC_N (N <>))))
16	and	17	(CORE* (CLM <>))
17	found	4	(CLAUSE (CORE (NUC (V <>)) (NP )))
18	the	19	(NP* (OP-DEF <>))
19	rates	17	(NP (CORE_N (NUC_N (N <>))))
20	illegal	17	(CORE* (AP (CORE_A (NUC_A (A <>)))))
21	.	0	(SENTENCE (. <>))