returns a list of co-indexed empty categories , or null if such empty categories do n't exist . concode_field_sep List<CTNode> ls_termainals concode_elem_sep List<CTNode> ls_tokens concode_elem_sep CTNode nd_root concode_elem_sep IntObjectOpenHashMap<List<CTNode>> mp_nulls concode_field_sep CTNode getTerminal concode_elem_sep List<CTNode> getTokens concode_elem_sep List<CTNode> getTerminals concode_elem_sep void setTerminalsAux concode_elem_sep void setTerminals concode_elem_sep CTNode getCoIndexedAntecedent concode_elem_sep boolean isRange concode_elem_sep boolean isRange concode_elem_sep String toCoNLLPOS concode_elem_sep String toStringLine concode_elem_sep void linkCoIndexedEmtpyCategories concode_elem_sep void setPBLocs concode_elem_sep CTNode getToken concode_elem_sep CTNode getCoIndexedAntecedentAux concode_elem_sep String toString concode_elem_sep String toString concode_elem_sep CTNode getNode concode_elem_sep CTNode getNode concode_elem_sep CTNode getRoot concode_elem_sep String toForms concode_elem_sep String toForms
List < CTNode > function ( int arg0 ) { return mp_nulls . get ( arg0 ) ; }