With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: I heard that a company ( here is a link : http : //news.yahoo.com/nestl-purina-releases-commercial-aimed-dogs-183443091.html ) is trying to make a dog food commercial aimed at dogs , complete with squeaky chew - toy sounds , and high pitched sounds that humans ca n't hear .
text_B: The trying did not happen
not-entailed.