3. The method according to claim 2 , further comprising: ranking the candidate second answers according to the predicted likelihood that a second q-a pair formed from the second question and a particular candidate second answer has second linking features analogous to the first linking features; and selecting a best answer based on the ranking of the candidate second answers.
3. The method according to claim 2 , further comprising: ranking the candidate second answers according to the predicted likelihood that a second q-a pair formed from the second question and a particular candidate second answer has second linking features analogous to the first linking features; and selecting a best answer based on the ranking of the candidate second answers. 4. The method according to claim 3 , further comprising: applying a set-based reasoning method using the learned link prediction model to determine a score for each candidate second answer, the score representing the predicted likelihood that a second q-a pair formed from the second question and the particular candidate second answer has second linking features analogous to the first linking features.