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
      (CORE
        (CLM 0=To)
        (NUC (V 1=hang) (PRT 2=on))
        (PP (CORE_P (NUC_P (P 3=from)) (NP (CORE_N (NUC_N (N 4=day))))))
        (PP (CORE_P (NUC_P (P 5=to)) (NP (CORE_N (NUC_N (N 6=day))))))
        (PP-PERI
          (CLM 7=and)
          (CORE_P (NUC_P (P 8=from)) (NP (CORE_N (NUC_N (N 9=week))))))
        (PP-PERI
          (CORE_P (NUC_P (P 10=to)) (NP (CORE_N (NUC_N (N 11=week))))))
        (CORE-PERI
          (, 12=,)
          (NUC (V 13=spinning) (PRT 14=out))
          (NP
            (OP-DEF 15=a)
            (CORE_N
              (NUC_N
                (N 16=present)
                (CLAUSE-PERI
                  (PrCS (NP-REL (PRO-REL 17=that)))
                  (CORE
                    (NUC (V 18=had))
                    (NP (OP-DEF 19=no) (CORE_N (NUC_N (N 20=future)))))))))
          (, 21=,)))
      (NUC (V 22=seemed))
      (NP
        (OP-DEF 23=an)
        (CORE_N (AP-PERI (CORE_A (NUC_A (A 24=unconquerable)))) (NUC_N (N 25=instinct))))
      (PP-PERI
        (, 26=,)
        (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 27=just))))
        (CORE_P
          (NUC_P (P 28=as))
          (CLAUSE
            (CORE
              (NP
                (NPIP (NP (PRO 29=one) (POS 30='s)))
                (CORE_N (NUC_N (N 31=lungs))))
              (ADVP-PERI (CORE_ADV (NUC_ADV (ADV 33=always))))
              (NUC (V 34=draw))
              (NP
                (OP-DEF 35=the)
                (CORE_N
                  (AP-PERI (CORE_A (NUC_A (A 36=next))))
                  (NUC_N (N 37=breath))))
              (ADVP-PERI
                (CORE_ADV
                  (NUC_ADV (ADV 38=so) (ADV 39=long) (P 40=as))
                  (CLAUSE
                    (CORE
                      (NP (PRO-DEM 41=there))
                      (NUC (AUX-TNS 42=is) (A 44=available))
                      (NP (CORE_N (NUC_N (N 43=air)))))))))
            (OP-TNS 32=will))))))
  (. 45=.))