With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: John Lennon 's divorce followed , as well as his entering the world of black magic , as deeply as to buy the apartment . where the `` Rosemary 's baby `` had been filmed , previous property of Roman Polansky , and in that same apartment John Lennon had a room upholstered with black silk where he used to do his black magic operations .
text_B: The having happened
entailed.