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	The	2	(NP* (OP-DEF <>))
2	Babelists	8	(NP (CORE_N (NUC_N (N-PROP <>))))
3	of	2	(CORE_N* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
4	the	6	(NP* (OP-DEF <>))
5	United	6	(NUC_N* (N-PROP <>))
6	Nations	3	(NP (CORE_N (NUC_N (N-PROP <>))))
7	are	8	(NUC* (AUX-TNS <>))
8	experts	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (NP (CORE_N (NUC_N (N <>)) (PP )))))))
9	at	8	(PP (CORE_P (NUC_P (P <>)) (NP )))
10	obfuscation	9	(NP (CORE_N (NUC_N (N <>))))
11	.	8	(CORE* (. <>))