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
  (PrDP
    (PP
      (CLM 0=And)
      (CORE_P
        (NUC_P (P 1=in) (N 2=spite) (P 3=of))
        (NP
          (OP-DEF 4=the)
          (CORE_N
            (AP-PERI (CORE_A (NUC_A (A 5=endless))))
            (NUC_N
              (N 6=slaughters)
              (CORE-PERI
                (NUC (V 7=reported))
                (PP-PERI
                  (CORE_P
                    (NUC_P (P 8=in))
                    (NP (OP-DEF 9=the) (CORE_N (NUC_N (N 10=Press))))))
                (PP-PERI
                  (CLM 11=and)
                  (CORE_P
                    (NUC_P (P 12=on))
                    (NP (OP-DEF 13=the) (CORE_N (NUC_N (N 14=telescreens)))))))))))
      (, 15=,)))
  (CLAUSE
    (CORE
      (NP
        (OP-DEF 16=the)
        (CORE_N
          (AP-PERI (CORE_A (NUC_A (A 17=desperate))))
          (NUC_N (N 18=battles))
          (PP
            (P 19=of)
            (NP
              (CORE_N
                (AP-PERI (CORE_A (NUC_A (A 20=earlier))))
                (NUC_N (N 21=wars))))))
        (SENTENCE-PERI
          (, 22=,)
          (CLAUSE
            (PrCS
              (PP-REL (CORE_P (NUC_P (P 23=in)) (NP-REL (PRO-REL 24=which)))))
            (CORE
              (NP
                (CORE_N
                  (CORE_N
                    (NUC_Q (QNT 25=hundreds))
                    (PP (P 26=of) (NP (CORE_N (NUC_Q (QNT 27=thousands))))))
                  (CORE_N
                    (CLM 28=or)
                    (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 29=even))))
                    (NUC_Q (QNT 30=millions)))
                  (PP (P 31=of) (NP (CORE_N (NUC_N (N 32=men)))))))
              (OP-TNS 33=were)
              (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 34=often))))
              (NUC (V 35=killed))
              (PP-PERI
                (CORE_P
                  (NUC_P (P 36=in))
                  (NP
                    (CORE_N
                      (QP (CORE_Q (NUC_Q (OP-DEF 37=a) (QNT 38=few))))
                      (NUC_N (N 39=weeks))))))))
          (, 40=,)))
      (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 42=never))))
      (NUC (AUX-ASP 43=been) (V 44=repeated)))
    (OP-TNS 41=have))
  (. 45=.))