With no explanation, label text_A→text_B with either "entailment" or "not-entailment".
text_A: Bob needed batteries for his flashlight. He decided to use the batteries in his fire detector. He decided to take a nap after putting the batteries in. Unfortunately, the gas light in his attic ignited. Without a fire detector, the house burned down and Bob burned with it.
text_B: Bob failed to wake up. ends before Without the house burn
entailment.