With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: It is widely acknowledged that the Pakistani ISI has nurtured a number of extremist Islamist groups , such as the Harkat - ul - Jehad - al - Islami , in the port city of Chittagong , and put a number of secessionist rebels from India 's northeast in touch with this terrorist network .
text_B: The acknowledging did not happen
not-entailed.