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: parse a received input question having a set of question characteristics; compare the set of question characteristics found in the received input question to a set of data characteristics respectively describing data in each corpus of a corpora; for each question characteristic in the set of found question characteristics: responsive to the question characteristic being more related to a data characteristic in the set of data characteristics, assign a first weight to the corpus within which data associated with the data characteristic resides; and responsive to the question characteristic being less related to the data characteristic in the set of data characteristics, assign a second weight to the corpus within which the data associated with the data characteristic resides, wherein the first weight is greater than the second weight; and selectively search for an answer to the received input question in one or more corpora with a higher weighting preferentially to one or more corpora with a lower weighting.
3. The computer program product of claim 1 , wherein the first weight and the second weight are defined by a user.