Returns the head of the graph node if defined; otherwise, a null-value. Returns the leftmost (left) dependent of the graph node if defined; otherwise, a null-value. Returns the rightmost (right) dependent of the graph node if defined; otherwise, a null-value. Returns the next left (same-side) sibling of the graph node if defined; otherwise, a null-value. Returns the next right (same-side) sibling of the graph node if defined; otherwise, a null-value. Returns the predecessor of the graph node in the linear order of the input string if defined; otherwise, a null-value. Returns the successor of the graph node in the linear order of the input string if defined; otherwise, a null-value. Returns the ancestor of the graph node if defined; otherwise, a null-value. Returns the proper ancestor of the graph node if defined; otherwise, a null-value. Returns the leftmost descendant of the graph node if defined; otherwise, a null-value. Returns the proper leftmost descendant of the graph node if defined; otherwise, a null-value. Returns the rightmost descendant of the graph node if defined; otherwise, a null-value. Returns the proper rightmost descendant of the graph node if defined; otherwise, a null-value. input column of integer type in the data format and the address functions must return token nodes in the input string. (If one of the address functions is undefined, a null-value is returned.) This feature function can be used to define features over the dependency graph predicted by another parser and given as input to MaltParser.]]> input column of integer type in the data format and the address function must return a token node in the input string. (If the address function is undefined, a null-value is returned.) This feature function can be used to define features over the dependency graph predicted by another parser and given as input to MaltParser.]]> ldep, rdep and dep (for left dependent, right dependent and dependent, respectively). The normalization string is a list of integers (separated by "|") specifying the intervals used to discretize the metric. The list must start with 0 and be sorted in ascending order. The value returned is (a category corresponding to) the greatest integer in the normalization string that is smaller than or equal to the exact number. ]]> output column of integer type in the data format and the address functions must return token nodes in the input string. (If one of the address functions is undefined, a null-value is returned.) IMPORTANT NOTE: Currently the column name is ignored, it only works for arcs described by the HEAD output column. ]]>