RRGparbank

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.
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Re-attach a node by dragging and dropping it on a new parent. This can be used to created discontinuous constituents.
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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.

				[...wait for it...]

(SENTENCE
  (CLAUSE
    (CORE
      (NP
        (OP-DEF 0=The)
        (CORE_N
          (AP-PERI (CORE_A (NUC_A (A 1=enormous))))
          (NUC_N (N 2=face))
          (PP-PERI
            (, 22=,)
            (CORE_P
              (NUC_P (P 23=with))
              (NP
                (NP
                  (OP-DEF 24=its)
                  (CORE_N
                    (AP-PERI (CORE_A (NUC_A (A 25=heavy))))
                    (AP-PERI (CORE_A (NUC_A (A 26=black))))
                    (NUC_N (N 27=moustache))))
                (NP
                  (CLM 28=and)
                  (OP-DEF 29=the)
                  (CORE_N
                    (NUC_N
                      (N 30=eyes)
                      (CLAUSE-PERI
                        (CLAUSE
                          (PrCS (NP-REL (PRO-REL 31=that)))
                          (CORE
                            (NUC (V 32=followed))
                            (NP (PRO 33=you))
                            (ADVP-PERI
                              (CORE_ADV
                                (NUC_ADV (P 34=to) (CLM 35=and) (P 36=fro))))))))))))
            (, 37=,))))
      (NUC (V 38=seemed)))
    (CORE
      (CLM 39=to)
      (NUC (V 40=float))
      (PP
        (CORE_P
          (NUC_P (P 41=into))
          (NP (OP-DEF 42=his) (CORE_N (NUC_N (N 43=mind))))))
      (PP-PERI
        (CORE_P
          (NUC_P (P 44=of))
          (NP
            (OP-DEF 45=its)
            (CORE_N (AP-PERI (CORE_A (NUC_A (A 46=own)))) (NUC_N (N 47=accord))))))))
  (SENTENCE-PERI
    (-LRB- 3=#LRB#)
    (CLAUSE
      (CORE
        (PP-PERI
          (CORE_P
            (NUC_P (P 4=because) (P 5=of))
            (CLAUSE-PERI
              (CORE
                (NUC (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 6=constantly)))) (V 7=seeing))
                (NP (PRO 8=it))
                (PP
                  (CORE_P (NUC_P (P 9=on)) (NP (CORE_N (NUC_N (N 10=posters))))))))))
        (NP (PRO 11=he))
        (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 12=always))))
        (NUC (V 13=thought))
        (PP (CORE_P (NUC_P (P 14=of)) (NP (PRO 15=it)))))
      (CLAUSE
        (CLM 16=as)
        (CORE
          (NUC (AUX-ASP 17=being) (A 20=wide))
          (NP (OP-DEF 18=a) (CORE_N (NUC_N (N 19=metre)))))))
    (-RRB- 21=#RRB#))
  (. 48=.))