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	Mr.	2	(NUC_N* (N-PROP <>))
2	Stevens	6	(NP (CORE_N (NUC_N (N-PROP <>))))
3	was	6	(NUC* (AUX-TNS <>))
4	executive	6	(NUC_N* (N <>))
5	vice	6	(NUC_N* (N <>))
6	president	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (NP (CORE_N (NUC_N (N <>)) (PP )))))))
7	of	6	(PP (P <>) (NP ))
8	this	11	(NP* (OP-DEF <>))
9	electric-utility	11	(NUC_N* (N <>))
10	holding	11	(NUC_N* (N <>))
11	company	7	(NP (CORE_N (NUC_N (N <>))))
12	.	0	(SENTENCE (. <>))