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 (NUC_N (N 0=Analysts))))
      (NUC (V 1=noted))
      (NP-PERI (CORE_N (NUC_N (N 2=yesterday))))
      (. 29=.))
    (CLAUSE
      (CLM 3=that)
      (CORE
        (NP
          (NPIP (NP (CORE_N (NUC_N (N-PROP 4=Cray) (N-PROP 5=Research))) (POS 6='s)))
          (CORE_N
            (NUC_N (N 7=decision))
            (CORE
              (CLM 8=to)
              (NUC (V 9=link))
              (NP
                (OP-DEF 10=its)
                (CORE_N
                  (ADJP
                    (NUC_N (N 11=$))
                    (QP (CORE_Q (NUC_Q (QNT 12=98.3) (QNT 13=million)))))
                  (AP-PERI (CORE_A (NUC_A (A 14=promissory))))
                  (NUC_N (N 15=note))))
              (PP
                (CORE_P
                  (NUC_P (P 16=to))
                  (NP
                    (NPIP
                      (NP
                        (CORE_N (NUC_N (N-PROP 17=Mr.) (N-PROP 18=Cray)))
                        (POS 19='s)))
                    (CORE_N (NUC_N (N 20=presence)))))))))
        (NUC (V 22=complicate))
        (NP
          (OP-DEF 23=a)
          (CORE_N (NUC_N (N 24=valuation)))
          (PP
            (CORE_P
              (NUC_P (P 25=of))
              (NP
                (OP-DEF 26=the)
                (CORE_N
                  (AP-PERI (CORE_A (NUC_A (A 27=new))))
                  (NUC_N (N 28=company))))))))
      (OP-TNS 21=will))))

				[...wait for it...]

(SENTENCE
  (CLAUSE
    (CORE
      (NP (CORE_N (NUC_N (N 0=Analysts))))
      (NUC (V 1=noted))
      (NP-PERI (CORE_N (NUC_N (N 2=yesterday)))))
    (CLAUSE
      (CLM 3=that)
      (CORE
        (NP
          (NPIP (NP (CORE_N (NUC_N (N-PROP 4=Cray) (N-PROP 5=Research))) (POS 6='s)))
          (CORE_N
            (NUC_N (N 7=decision))
            (CORE
              (CLM 8=to)
              (NUC (V 9=link))
              (NP
                (OP-DEF 10=its)
                (CORE_N
                  (NP-PERI
                    (CORE_N
                      (NUC_N (N 11=$))
                      (QP (CORE_Q (NUC_Q (QNT 12=98.3) (QNT 13=million))))))
                  (AP-PERI (CORE_A (NUC_A (A 14=promissory))))
                  (NUC_N (N 15=note))))
              (PP
                (CORE_P
                  (NUC_P (P 16=to))
                  (NP
                    (NPIP
                      (NP
                        (CORE_N (NUC_N (N-PROP 17=Mr.) (N-PROP 18=Cray)))
                        (POS 19='s)))
                    (CORE_N (NUC_N (N 20=presence)))))))))
        (NUC (V 22=complicate))
        (NP
          (OP-DEF 23=a)
          (CORE_N
            (NUC_N (N 24=valuation))
            (PP
              (CORE_P
                (NUC_P (P 25=of))
                (NP
                  (OP-DEF 26=the)
                  (CORE_N
                    (AP-PERI (CORE_A (NUC_A (A 27=new))))
                    (NUC_N (N 28=company)))))))))
      (OP-TNS 21=will)))
  (. 29=.))

Supertags

	token	arc	supertag
1	Analysts	2	(NP (CORE_N (NUC_N (N <>))))
2	noted	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>))) (CLAUSE )))
3	yesterday	2	(CORE* (NP-PERI (CORE_N (NUC_N (N <>)))))
4	that	23	(CLAUSE* (CLM <>))
5	Cray	6	(NUC_N* (N-PROP <>))
6	Research	8	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
7	's	6	(NP* (POS <>))
8	decision	23	(NP (CORE_N (NUC_N (N <>)) (CORE )))
9	to	10	(CORE* (CLM <>))
10	link	8	(CORE (NUC (V <>)) (NP ) (PP ))
11	its	16	(NP* (OP-DEF <>))
12	$	16	(CORE_N* (NP-PERI (CORE_N (NUC_N (N <>)))))
13	98.3	14	(NUC_Q* (QNT <>))
14	million	12	(CORE_N* (QP (CORE_Q (NUC_Q (QNT <>)))))
15	promissory	16	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
16	note	10	(NP (CORE_N (NUC_N (N <>))))
17	to	10	(PP (CORE_P (NUC_P (P <>)) (NP )))
18	Mr.	19	(NUC_N* (N-PROP <>))
19	Cray	21	(NP* (NPIP (NP (CORE_N (NUC_N (N-PROP <>))))))
20	's	19	(NP* (POS <>))
21	presence	17	(NP (CORE_N (NUC_N (N <>))))
22	will	23	(CORE* (OP-TNS <>))
23	complicate	2	(CLAUSE (CORE (NP ) (NUC (V <>)) (NP )))
24	a	25	(NP* (OP-DEF <>))
25	valuation	23	(NP (CORE_N (NUC_N (N <>)) (PP )))
26	of	25	(PP (CORE_P (NUC_P (P <>)) (NP )))
27	the	29	(NP* (OP-DEF <>))
28	new	29	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
29	company	26	(NP (CORE_N (NUC_N (N <>))))
30	.	0	(SENTENCE (. <>))