type PropbankPointer

source code

object --+
         |
        PropbankPointer

Known Subclasses:

• PropbankChainTreePointer
• , PropbankSplitTreePointer
• , PropbankTreePointer

A pointer used by propbank to identify one or more constituents in a parse tree. PropbankPointer is an abstract base class with three concrete subclasses:

• PropbankTreePointer is used to point to single constituents.
• PropbankSplitTreePointer is used to point to 'split' constituents, which consist of a sequence of two or more PropbankTreePointers.
• PropbankChainTreePointer is used to point to entire trace chains in a tree. It consists of a sequence of pieces, which can be PropbankTreePointers or PropbankSplitTreePointers.