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
      (NP
        (CORE_N
          (AP-PERI (CORE_A (NUC_A (A 0=More))))
          (PP
            (CORE_P
              (NUC_P (P 1=than))
              (NP
                (OP-DEF 2=a)
                (CORE_N
                  (AP-PERI (CORE_A (NUC_A (A 3=few))))
                  (NUC_N (N 4=CEOs))))))))
      (NUC (V 5=say))
      (. 20=.))
    (CLAUSE
      (CORE
        (NP
          (OP-DEF 6=the)
          (CORE_N (AP-PERI (CORE_A (NUC_A (A 7=red-carpet)))) (NUC_N (N 8=treatment))))
        (NUC (V 9=tempts))
        (NP (PRO 10=them))
        (CORE
          (CLM 11=to)
          (NUC (V 12=return))
          (PP-PERI
            (CORE_P
              (NUC_P (P 13=to))
              (NP (OP-DEF 14=a) (CORE_N (NUC_N (N 15=heartland) (N 16=city))))))
          (PP-PERI
            (CORE_P
              (NUC_P (P 17=for))
              (NP
                (CORE_N
                  (AP-PERI (CORE_A (NUC_A (A 18=future))))
                  (NUC_N (N 19=meetings)))))))))))

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(SENTENCE
  (CLAUSE
    (CLAUSE
      (CORE
        (CORE
          (NP (PRO 10=them))
          (NP
            (CORE_N (NUC_N (N 8=treatment)) (AP-PERI (CORE_A (NUC_A (A 7=red-carpet)))))
            (OP-DEF 6=the))
          (NUC (V 9=tempts)))
        (CORE
          (PP-PERI
            (CORE_P
              (NUC_P (P 17=for))
              (NP
                (CORE_N
                  (NUC_N (N 19=meetings))
                  (AP-PERI (CORE_A (NUC_A (A 18=future))))))))
          (PP-PERI
            (CORE_P
              (NUC_P (P 13=to))
              (NP (CORE_N (NUC_N (N 16=city) (N 15=heartland))) (OP-DEF 14=a))))
          (CLM 11=to)
          (NUC (V 12=return)))))
    (CORE
      (NP
        (CORE_N
          (NUC_N (N 0=More))
          (PP-PERI
            (CORE_P
              (NUC_P (P 1=than))
              (NP
                (CORE_N
                  (NUC_N (N 4=CEOs))
                  (AP-PERI (CORE_A (NUC_A (A 3=few)))))
                (OP-DEF 2=a))))))
      (NUC (V 5=say)))
    (. 20=.)))

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Supertags

	token	arc	supertag
1	More	2	(A <>)
2	than	4	(CORE_N* (ADVP-PERI (CORE_ADV (NUC_ADV (A ) (P <>)))))
3	a	4	(CORE_N* (OP-DEF <>))
4	few	5	(CORE_N* (NP-PERI (CORE_N (NUC_A (A <>)))))
5	CEOs	6	(NP (CORE_N (NUC_N (N <>))))
6	say	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>))) (CLAUSE )))
7	the	9	(NP* (OP-DEF <>))
8	red-carpet	9	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
9	treatment	10	(NP (CORE_N (NUC_N (N <>))))
10	tempts	6	(CLAUSE (CORE (NP ) (NUC (V <>)) (NP )) (CORE ))
11	them	10	(NP (PRO <>))
12	to	13	(CORE* (CLM <>))
13	return	10	(CORE (NUC (V <>)) (PP ))
14	to	13	(PP (CORE_P (NUC_P (P <>)) (NP )))
15	a	17	(NP* (OP-DEF <>))
16	heartland	17	(NUC_N* (N <>))
17	city	14	(NP (CORE_N (NUC_N (N <>))))
18	for	13	(CORE* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
19	future	20	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
20	meetings	18	(NP (CORE_N (NUC_N (N <>))))
21	.	0	(SENTENCE (. <>))