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.

				[...wait for it...]

				[...wait for it...]

				[...wait for it...]

				[...wait for it...]

				[...wait for it...]

Supertags

	token	arc	supertag
1	Businessmen	2	(NP (CORE_N (NUC_N (N <>))))
2	took	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ) (PP ))))
3	their	4	(NP* (OP-DEF <>))
4	cue	2	(NP (CORE_N (NUC_N (N <>))))
5	from	2	(PP (CORE_P (NUC_P (P <>)) (NP )))
6	the	7	(NP* (OP-DEF <>))
7	engineers	5	(NP (CORE_N (NUC_N (N <>))))
8	.	2	(CORE* (. <>))