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.
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.
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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
          (NUC_N (N 1=splitting))
          (PP
            (P 2=of)
            (NP
              (OP-DEF 3=the)
              (CORE_N
                (NUC_N
                  (N 4=intelligence)
                  (CLAUSE-PERI
                    (PrCS (NP-REL (PRO-REL 5=which)))
                    (CORE
                      (NP (OP-DEF 6=the) (CORE_N (NUC_N (N-PROP 7=Party))))
                      (NUC (V 8=requires))
                      (PP
                        (P 9=of)
                        (NP (OP-DEF 10=its) (CORE_N (NUC_N (N 11=members))))))
                    (, 12=,))
                  (CLAUSE-PERI
                    (CLM 13=and)
                    (PrCS (NP-REL (PRO-REL 14=which)))
                    (CORE
                      (NUC (AUX-TNS 15=is) (V 18=achieved))
                      (ADVP-PERI
                        (CORE_ADV
                          (NUC_ADV
                            (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 16=more))))
                            (ADV 17=easily))))
                      (PP-PERI
                        (CORE_P
                          (NUC_P (P 19=in))
                          (NP
                            (OP-DEF 20=an)
                            (CORE_N
                              (NUC_N (N 21=atmosphere))
                              (PP
                                (P 22=of)
                                (NP (CORE_N (NUC_N (N 23=war)))))))))))
                  (, 24=,)))))))
      (NUC
        (AUX-TNS 25=is)
        (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 27=almost))))
        (A 28=universal))
      (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 26=now))))))
  (CLAUSE
    (, 29=,)
    (CLM 30=but)
    (CLAUSE
      (CLM 31=the)
      (CORE
        (ADVP
          (CORE_ADV
            (NUC_ADV (ADV 32=higher))
            (PP
              (CORE_P
                (NUC_P (P 33=up))
                (NP (OP-DEF 34=the) (CORE_N (NUC_N (N 35=ranks))))))))
        (NP (PRO 36=one))
        (NUC (V 37=goes)))
      (, 38=,))
    (CLAUSE
      (CLM 39=the)
      (CORE
        (NUC
          (NUC (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 40=more)))) (A 41=marked))
          (NUC (V 43=becomes)))
        (NP (PRO 42=it)))))
  (. 44=.))