8. A tangible, non-transitory computer readable storage medium or media having stored thereon machine executable instructions that, when executed by one or more processors, cause the one or more processors to: receive a natural language query; determine an answer to the natural language query; format one or more electronic messages that include: the answer, and metadata corresponding to the answer, the metadata separate from the answer and including information to enable construction by a computing device, using the metadata, of a syntactically correct natural language sentence or statement that recites and/or describes the answer, wherein the information to enable construction comprises information (i) indicating how the natural language query was interpreted in determining the answer and (ii) not included in the query; and cause a network interface device to transmit the one or more electronic messages via a communication network.
8. A tangible, non-transitory computer readable storage medium or media having stored thereon machine executable instructions that, when executed by one or more processors, cause the one or more processors to: receive a natural language query; determine an answer to the natural language query; format one or more electronic messages that include: the answer, and metadata corresponding to the answer, the metadata separate from the answer and including information to enable construction by a computing device, using the metadata, of a syntactically correct natural language sentence or statement that recites and/or describes the answer, wherein the information to enable construction comprises information (i) indicating how the natural language query was interpreted in determining the answer and (ii) not included in the query; and cause a network interface device to transmit the one or more electronic messages via a communication network. 9. The computer readable storage medium or media of claim 8 , wherein the metadata includes information to enable construction by the computing device, using the metadata, of the sentence or statement so that the sentence or statement further rephrases the query.