1. A computer program product comprising a computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to: receive a plurality of candidate answers for an input question from a Question and Answer (QA) system; identify terms present in the plurality of candidate answers; determine relationships between terms the plurality of candidate answers; determine a common relationship between terms in a subset of the plurality of candidate answers, the common relationship being between a first term and a second term in each candidate answer of the subset of the plurality of candidate answers based on the determined relationships between terms the plurality of candidate answers; and present the plurality of candidate answers and the common relationship to a user.
9. The computer program product of claim 1 , wherein the computer readable program further causes the computing device to present the plurality of candidate answers and the common relationship between terms in the subset of the plurality of candidate answers to the user by generating a visual display of the plurality of candidate answers and at least one evidence text passage from at least one document of a corpus that support the common relationship between terms in the subset of the plurality of candidate answers, with portions of at least one of the subset of the plurality of candidate answers, or the at least one evidence text passage, being accentuated in the visual display.