With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: he has been drinking water ( i am pretty sure he has been drinking it out of his bowl , but also i have been feeding him water and he does n't ever give me a problem with that - i just stick his head near the water and he sucks it down . )
text_B: The sucking happened
entailed.