12. The apparatus of claim 10 , wherein the instructions further cause the processor to determine the common relationship by: searching a relationship data store comprising a plurality of entries, each entry corresponding to a relationship between a first found term and at least one second found term found during pre-processing of documents of at least one corpus; and for a term found in a candidate answer in the plurality of candidate answers, identifying one or more entries in the relationship data store that match the term.
12. The apparatus of claim 10 , wherein the instructions further cause the processor to determine the common relationship by: searching a relationship data store comprising a plurality of entries, each entry corresponding to a relationship between a first found term and at least one second found term found during pre-processing of documents of at least one corpus; and for a term found in a candidate answer in the plurality of candidate answers, identifying one or more entries in the relationship data store that match the term. 13. The apparatus of claim 12 , wherein each entry in the relationship data store comprises a pair-wise relationship between a first term found during pre-processing of at least one document of a corpus, and a second term found during pre-processing of the at least one document of the corpus, based on relationships identified in the at least one document of the corpus through natural language processing of the at least one document of the corpus.