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	Matagorda	6	(NUC_N* (N-PROP <>))
2	County	6	(NUC_N* (N-PROP <>))
3	Navigation	6	(NUC_N* (N-PROP <>))
4	District	6	(NUC_N* (N-PROP <>))
5	No.	6	(NUC_N* (N-PROP <>))
6	1	0	(NP (CORE_N (NUC_N (QNT <>))))
7	,	8	(NP-PERI* (, <>))
8	Texas	6	(CORE_N* (NP-PERI (CORE_N (NUC_N (N-PROP <>)))))
9	--	6	(CORE_N* (: <>))