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	``	3	(SENTENCE* (`` <>))
2	We	3	(NP (PRO <>))
3	have	0	(SENTENCE (PrDP (SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ))))))
4	a	6	(NP* (OP-DEF <>))
5	long	6	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
6	history	3	(NP (CORE_N (NUC_N (N <>)) (PP )))
7	of	6	(PP (CORE_P (NUC_P (P <>)) (CORE )))
8	maintaining	7	(CORE (NUC (V <>)) (NP ))
9	an	12	(NP* (OP-DEF <>))
10	open	12	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
11	direct-investment	12	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
12	policy	8	(NP (CORE_N (NUC_N (N <>))))
13	,	17	(CORE* (, <>))
14	''	17	(CORE* ('' <>))
15	Mr.	16	(NUC_N* (N-PROP <>))
16	Dallara	17	(NP (CORE_N (NUC_N (N-PROP <>))))
17	says	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)))))
18	.	17	(CORE* (. <>))