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=``)
      (, 12=,)
      ('' 13='')
      (NUC (V 14=said))
      (NP
        (CORE_N
          (NUC_N (N-PROP 15=James) (N-PROP 16=A.) (N-PROP 17=Talcott))
          (PP
            (CORE_P
              (NUC_P (P 18=of))
              (NP
                (NPIP (NP (CORE_N (NUC_N (N-PROP 19=Boston))) (POS 20='s)))
                (CORE_N (NUC_N (N-PROP 21=Dana-Farber) (N-PROP 22=Cancer) (N-PROP 23=Institute))))))))
      (. 24=.)))
  (PrDP
    (SENTENCE
      (CLAUSE
        (CORE
          (NP (PRO 1=We))
          (NUC (V 2=have))
          (NP
            (OP-NEG 3=no)
            (CORE_N (AP-PERI (CORE_A (NUC_A (A 4=useful)))) (NUC_N (N 5=information)))
            (PP
              (CORE_P
                (NUC_P (P 6=on))
                (CLAUSE
                  (CLM 7=whether)
                  (CORE
                    (NP (CORE_N (NUC_N (N 8=users))))
                    (NUC
                      (AUX-TNS 9=are)
                      (PP
                        (CORE_P
                          (NUC_P (P 10=at))
                          (NP (CORE_N (NUC_N (N 11=risk)))))))))))))))))

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(SENTENCE
  (CLAUSE
    (CLAUSE
      (CORE
        (CORE
          (OP-NEG 3=no)
          (NUC
            (NP
              (CORE_N
                (NUC_N (N 5=information))
                (CORE-PERI
                  (NP (CORE_N (NUC_N (N 8=users))))
                  (CLM 7=whether)
                  (CLM 6=on)
                  (NUC
                    (AUX-TNS 9=are)
                    (PP
                      (CORE_P
                        (NUC_P (P 10=at))
                        (NP (CORE_N (NUC_N (N 11=risk))))))))
                (AP-PERI (CORE_A (NUC_A (A 4=useful))))))))
        (NP (PRO 1=We))
        (NUC (V 2=have))))
    (CORE
      (NP
        (CORE_N
          (NUC_N (N-PROP 17=Talcott) (N-PROP 16=A.) (N-PROP 15=James))
          (PP-PERI
            (CORE_P
              (NUC_P (P 18=of))
              (NP
                (CORE_N (NUC_N (N-PROP 23=Institute) (N-PROP 22=Cancer) (N-PROP 21=Dana-Farber)))
                (NPIP (NP (CORE_N (NUC_N (N-PROP 19=Boston))) (POS 20='s))))))))
      (NUC (V 14=said)))
    (. 24=.)
    ('' 13='')
    (, 12=,)
    (`` 0=``)))

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(SENTENCE
  (SENTENCE
    (`` 0=``)
    (CLAUSE
      (CORE
        (NP (PRO 1=We))
        (NUC (V 2=have))
        (NP
          (OP-DEF 3=no)
          (CORE_N
            (AP-PERI (CORE_A (NUC_A (A 4=useful))))
            (NUC_N (N 5=information))
            (PP
              (P 6=on)
              (CLAUSE
                (CLM 7=whether)
                (CORE
                  (NP (CORE_N (NUC_N (N 8=users))))
                  (NUC
                    (AUX-TNS 9=are)
                    (PP
                      (CORE_P
                        (NUC_P (P 10=at))
                        (NP (CORE_N (NUC_N (N 11=risk))))))))))))))
    (, 12=,)
    ('' 13=''))
  (CLAUSE
    (CORE
      (NUC (V 14=said))
      (NP
        (CORE_N
          (NUC_N (N-PROP 15=James) (N-PROP 16=A.) (N-PROP 17=Talcott))
          (PP-PERI
            (CORE_P
              (NUC_P (P 18=of))
              (NP
                (NPIP (NP (CORE_N (NUC_N (N-PROP 19=Boston))) (POS 20='s)))
                (CORE_N (NUC_N (N-PROP 21=Dana-Farber) (N-PROP 22=Cancer) (N-PROP 23=Institute))))))))
      (. 24=.))))

Supertags

	token	arc	supertag
1	``	3	(SENTENCE* (`` <>))
2	We	3	(NP (PRO <>))
3	have	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ))))
4	no	6	(NP* (OP-DEF <>))
5	useful	6	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
6	information	3	(NP (CORE_N (NUC_N (N <>)) (PP )))
7	on	6	(PP (P <>) (CLAUSE ))
8	whether	10	(CLAUSE* (CLM <>))
9	users	10	(NP (CORE_N (NUC_N (N <>))))
10	are	7	(CLAUSE (CORE (NP ) (NUC (AUX-TNS <>) (PP ))))
11	at	10	(PP (CORE_P (NUC_P (P <>)) (NP )))
12	risk	11	(NP (CORE_N (NUC_N (N <>))))
13	,	3	(SENTENCE* (, <>))
14	''	3	(SENTENCE* ('' <>))
15	said	0	(SENTENCE (SENTENCE ) (CLAUSE (CORE (NUC (V <>)) (NP ))))
16	James	18	(NUC_N* (N-PROP <>))
17	A.	18	(NUC_N* (N-PROP <>))
18	Talcott	15	(NP (CORE_N (NUC_N (N-PROP <>))))
19	of	18	(CORE_N* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
20	Boston	24	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
21	's	20	(NP* (POS <>))
22	Dana-Farber	24	(NUC_N* (N-PROP <>))
23	Cancer	24	(NUC_N* (N-PROP <>))
24	Institute	19	(NP (CORE_N (NUC_N (N-PROP <>))))
25	.	15	(CORE* (. <>))