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
        (OP-DEF 0=The)
        (CORE_N (AP-PERI (CORE_A (NUC_A (A 1=strong)))) (NUC_N (N 2=growth))))
      (NUC (V 3=followed))
      (NP
        (CORE_N
          (AP-PERI (CORE_A (NUC_A (A 4=year-to-year))))
          (NUC_N (N 5=increases))
          (PP
            (CORE_P
              (NUC_P (P 6=of))
              (NP
                (NP
                  (CORE_N
                    (QP (CORE_Q (NUC_Q (QNT 7=21))))
                    (NUC_N (N 8=%)))
                  (PP-PERI
                    (CORE_P
                      (NUC_P (P 9=in))
                      (NP (CORE_N (NUC_N (N-PROP 10=August)))))))
                (CLM 11=and)
                (NP
                  (CORE_N
                    (QP (CORE_Q (NUC_Q (QNT 12=12))))
                    (NUC_N (N 13=%)))
                  (PP-PERI
                    (CORE_P
                      (NUC_P (P 14=in))
                      (NP (CORE_N (NUC_N (N-PROP 15=September))))))))))))
      (. 16=.))))

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(SENTENCE
  (CLAUSE
    (CORE
      (NP
        (CORE_N
          (NUC_N (N 5=increases))
          (PP-PERI
            (CORE_P
              (NP
                (NP
                  (CORE_N
                    (NUC_N (N 8=%))
                    (PP-PERI
                      (CORE_P
                        (NUC_P (P 9=in))
                        (NP (CORE_N (NUC_N (N-PROP 10=August))))))
                    (QP (CORE_Q (NUC_Q (QNT 7=21))))))
                (NP
                  (CORE_N
                    (NUC_N (N 13=%))
                    (PP-PERI
                      (CORE_P
                        (NUC_P (P 14=in))
                        (NP (CORE_N (NUC_N (N-PROP 15=September))))))
                    (QP (CORE_Q (NUC_Q (QNT 12=12)))))
                  (CLM 11=and)))
              (NUC_P (P 6=of))))
          (AP-PERI (CORE_A (NUC_A (A 4=year-to-year))))))
      (NP
        (CORE_N (NUC_N (N 2=growth)) (AP-PERI (CORE_A (NUC_A (A 1=strong)))))
        (OP-DEF 0=The))
      (NUC (V 3=followed))
      (. 16=.))))

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Supertags

	token	arc	supertag
1	The	3	(NP* (OP-DEF <>))
2	strong	3	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
3	growth	4	(NP (CORE_N (NUC_N (N <>))))
4	followed	0	(SENTENCE (CLAUSE (CORE (NP ) (NUC (V <>)) (NP ))))
5	year-to-year	6	(CORE_N* (AP-PERI (CORE_A (NUC_A (A <>)))))
6	increases	4	(NP (CORE_N (NUC_N (N <>)) (PP )))
7	of	6	(PP (P <>) (NP ))
8	21	9	(CORE_N* (QP (CORE_Q (NUC_Q (QNT <>)))))
9	%	7	(NP (NP (CORE_N (NUC_N (N <>)))))
10	in	9	(NP* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
11	August	10	(NP (CORE_N (NUC_N (N-PROP <>))))
12	and	14	(NP* (CLM <>))
13	12	14	(CORE_N* (QP (CORE_Q (NUC_Q (QNT <>)))))
14	%	9	(NP* (NP (CORE_N (NUC_N (N <>)))))
15	in	14	(NP* (PP-PERI (CORE_P (NUC_P (P <>)) (NP ))))
16	September	15	(NP (CORE_N (NUC_N (N-PROP <>))))
17	.	0	(SENTENCE (. <>))