Daabank

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.

				[...wait for it...]

(SENTENCE
  (CLAUSE
    (CORE
      (NP
        (CORE_N
          (NUC_N
            (N 0=aran)
            (CLAUSE-PERI
              (CLM 1=na)
              (CORE
                (CORE (NP (PRO 2=ya)) (NUC (V 4=tebweti)))
                (CORE
                  (NUC (V 5=kekyer))
                  (NP (CORE_N (NUC_N (N 6='o))) (OP-DEF 7=an))
                  (NP-PERI
                    (CORE_N
                      (NUC_N
                        (N 8=aran)
                        (CLAUSE-PERI
                          (CLM 9=na)
                          (CORE
                            (NPIP (NP (PRO 10=an)))
                            (CORE
                              (NP (CORE_N (NUC_N (N 11=bosi))))
                              (CLM 12=te)
                              (NUC (V 13=pwer))
                              (NP (CORE_N (NUC_N (N 14=aran))))))))))))
              (OP-TNS 3=-m)))))))
  (CLAUSE
    (CLM 15=te)
    (OP-TNS 16=mwe)
    (CORE (CORE (NUC (V 17=liye))) (CORE (NUC (V 19=nok))))
    (OP-TNS 18=mwe)
    (CLM 20=te)))