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	Michelle	2	(NUC_N* (N-PROP <>))
2	Pfeiffer	0	(SENTENCE (CLAUSE (CORE (CORE (NP (CORE_N (NUC_N (N-PROP <>))))) (CORE ))))
3	ca	2	(CORE* (OP-MOD <>))
4	n't	2	(CORE* (OP-NEG <>))
5	chew	2	(CORE (NUC (V <>)))
6	gum	2	(CORE* (CORE (NP (CORE_N (NUC_N (N <>))))))
7	and	8	(CORE* (CLM <>))
8	sing	2	(CORE* (CORE (NUC (V <>))))
9	at	8	(CORE* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
10	the	12	(NP* (OP-DEF <>))
11	same	12	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
12	time	9	(NP (CORE_N (NUC_N (N <>))))
13	.	0	(SENTENCE (. <>))