With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: We have had enthusiastic responses from companies such as AT & T , Duke Energy , Pitney Bowes and Daimler Chrysler , and I would be pleased to answer any questions you may have about this focal point for our educational efforts . ?
text_B: The having did not happen
not-entailed.