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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(SENTENCE
  (CLAUSE
    (CORE
      (`` 0=``)
      (, 13=,)
      ('' 14='')
      (NP (CORE_N (NUC_N (N-PROP 15=Mr.) (N-PROP 16=Carpenter))))
      (NUC (V 17=said))
      (. 18=.)))
  (PrDP
    (SENTENCE
      (CLAUSE
        (CORE
          (NP (OP-DEF 1=Our) (CORE_N (NUC_N (N 2=decision))))
          (NUC (V 3=had))
          (NP
            (CORE_N
              (NUC_N (N 4=nothing))
              (CLAUSE-PERI
                (CORE
                  (CLM 5=to)
                  (NUC (V 6=do))
                  (PP
                    (CORE_P
                      (NUC_P (P 7=with))
                      (NP
                        (OP-DEF 8=any)
                        (CORE_N
                          (NUC_N (N 9=pressure))
                          (CLAUSE-PERI
                            (CORE
                              (NP
                                (CORE_N
                                  (NUC_N (N-PROP 10=Mr.) (N-PROP 11=Welch))))
                              (NUC (V 12=received)))))))))))))))))

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Supertags

	token	arc	supertag
1	``	4	(SENTENCE* (`` <>))
2	Our	3	(NP* (OP-DEF <>))
3	decision	4	(NP (CORE_N (NUC_N (N <>))))
4	had	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ) (NUC ) (PP ))))
5	nothing	4	(NP (CORE_N (NUC_N (N <>))))
6	to	4	(NUC (CLM <>))
7	do	4	(CORE* (NUC (V <>)))
8	with	4	(PP (CORE_P (NUC_P (P <>)) (NP )))
9	any	10	(NP* (OP-DEF <>))
10	pressure	8	(NP (CORE_N (NUC_N (N <>))))
11	Mr.	12	(NUC_N* (N-PROP <>))
12	Welch	13	(NP (CORE_N (NUC_N (N-PROP <>))))
13	received	10	(NUC_N* (CLAUSE-PERI (CORE (NP ) (NUC (V <>)))))
14	,	4	(SENTENCE* (, <>))
15	''	4	(SENTENCE* ('' <>))
16	Mr.	17	(NUC_N* (N-PROP <>))
17	Carpenter	18	(NP (CORE_N (NUC_N (N-PROP <>))))
18	said	0	(SENTENCE (SENTENCE ) (CLAUSE (CORE (NP ) (NUC (V <>)))))
19	.	18	(CORE* (. <>))