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
    (OP-TNS 3=will)
    (CORE
      (PP
        (CORE_P
          (NP
            (NP
              (CORE_N
                (NUC_N (N-PROP 9=Corp.) (N-PROP 8=Machines) (N-PROP 7=Business) (N-PROP 6=International))))
            (NP
              (CORE_N
                (NUC_N (N-PROP 11=Japan))
                (NP-PERI
                  (NP (CORE_N (NUC_N (N-PROP 17=Ltd.) (N-PROP 16=Hitachi))))
                  (NP
                    (CORE_N (NUC_N (N-PROP 23=Ltd) (N-PROP 22=Fujitsu)))
                    (CLM 21=and))
                  (NP (CORE_N (NUC_N (N-PROP 20=Corp.) (N-PROP 19=NEC))))
                  (, 18=,))
                (QP (CORE_Q (NUC_Q (QNT 14=Three))))
                (AP-PERI (CORE_A (NUC_A (A 13=Big)))))
              (POS 12='s)
              (: 15=--)
              (CLM 10=and)))
          (NUC_P (P 5=with))))
      (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 2=also))))
      (NP (CORE_N (NUC_N (N 1=spinoff))) (OP-DEF 0=The))
      (NUC (V 4=compete)))
    (. 24=.)))

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(SENTENCE
  (CLAUSE
    (CORE
      (NP (OP-DEF 0=The) (CORE_N (NUC_N (N 1=spinoff))))
      (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 2=also))))
      (NUC (V 4=compete))
      (PP
        (CORE_P
          (NUC_P (P 5=with))
          (NP
            (NP
              (CORE_N
                (NUC_N (N-PROP 6=International) (N-PROP 7=Business) (N-PROP 8=Machines) (N-PROP 9=Corp.))))
            (NP
              (CLM 10=and)
              (NPIP (NP (CORE_N (NUC_N (N-PROP 11=Japan))) (POS 12='s)))
              (CORE_N
                (AP-PERI (CORE_A (NUC_A (A 13=Big))))
                (NUC_Q (QNT 14=Three))
                (NP
                  (: 15=--)
                  (NP (CORE_N (NUC_N (N-PROP 16=Hitachi) (N-PROP 17=Ltd.))))
                  (NP
                    (, 18=,)
                    (CORE_N (NUC_N (N-PROP 19=NEC) (N-PROP 20=Corp.))))
                  (NP
                    (CLM 21=and)
                    (CORE_N (NUC_N (N-PROP 22=Fujitsu) (N-PROP 23=Ltd)))))))))))
    (OP-TNS 3=will))
  (. 24=.))

Supertags

	token	arc	supertag
1	The	2	(NP* (OP-DEF <>))
2	spinoff	5	(NP (CORE_N (NUC_N (N <>))))
3	also	5	(CORE* (ADVP-PERI (CORE_ADV (NUC_ADV (ADV <>)))))
4	will	5	(CORE* (OP-TNS <>))
5	compete	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (PP ))))
6	with	5	(PP (CORE_P (NUC_P (P <>)) (NP )))
7	International	10	(NUC_N* (N-PROP <>))
8	Business	10	(NUC_N* (N-PROP <>))
9	Machines	10	(NUC_N* (N-PROP <>))
10	Corp.	6	(NP (NP (CORE_N (NUC_N (N-PROP <>)))))
11	and	18	(NP* (CLM <>))
12	Japan	18	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
13	's	12	(NP* (POS <>))
14	Big	18	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
15	Three	18	(NUC_Q (QNT <>))
16	--	18	(NP* (: <>))
17	Hitachi	18	(NUC_N* (N-PROP <>))
18	Ltd.	10	(NP* (NP (CORE_N (NUC_Q ) (NP (NP (CORE_N (NUC_N (N-PROP <>))))))))
19	,	21	(NP* (, <>))
20	NEC	21	(NUC_N* (N-PROP <>))
21	Corp.	18	(NP* (NP (CORE_N (NUC_N (N-PROP <>)))))
22	and	24	(NP* (CLM <>))
23	Fujitsu	24	(NUC_N* (N-PROP <>))
24	Ltd	18	(NP* (NP (CORE_N (NUC_N (N-PROP <>)))))
25	.	0	(SENTENCE (. <>))