15. The method of claim 12 , wherein the second natural language expression and the second meaning representation are inserted as part of processing an elliptic or zero-realized construction.
12. A method of semantically parsing a natural language expression, comprising: constructing, by a processor, a first ambiguous meaning representation for a first natural language expression; fully or partially disambiguating, by a processor, the first meaning representation by specializing it by replacing a first semantic descriptor in it by a second, more specific semantic descriptor; and combining the first meaning representation with a second meaning representation associated with a second natural language expression to form a third meaning representation comprising a relation between the first and second meaning representations, the relation type identified by a fourth meaning representation.