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	Of	2	(P <>)
2	course	0	(SENTENCE (PrDP (ADVP (CORE_ADV (NUC_ADV (P ) (N <>))))))
3	,	5	(CORE* (, <>))
4	that	5	(NP (PRO-DEM <>))
5	was	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (AUX-TNS <>) (PP )))))
6	before	5	(PP (CORE_P (NUC_P (P <>)) (NP )))
7	Ford	10	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
8	's	7	(NP* (POS <>))
9	latest	10	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
10	move	6	(NP (CORE_N (NUC_N (N <>))))
11	.	5	(CORE* (. <>))