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	This	8	(NP (PRO-DEM <>))
2	has	8	(CORE* (OP-TNS <>))
3	n't	8	(CORE* (OP-NEG <>))
4	been	8	(NUC* (AUX-ASP <>))
5	Kellogg	6	(NUC_N* (N-PROP <>))
6	Co.	8	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
7	's	6	(NP* (POS <>))
8	year	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (NP (CORE_N (NUC_N (N <>))))))))
9	.	8	(CORE* (. <>))