When TE was used to filter non-entailed answers from consideration (Method 1), the overall accuracy of the Q/A system increased by 12% over the baseline (when an EAT could be identified) and by nearly 9% (when no EAT could be identified).
under these approaches (referred to as licensing by (Groenendijk, 1999) and aboutness by (Lewis, 1988)), p is considered to be an answer to a question ?q iff ?q logically entails the set of worlds in which p is true(i.e.