With no explanation, label text_A→text_B with either "entailment" or "not-entailment".
text_A: Sam bought a new phone. He left it charging overnight. The battery exploded and caused a small fire. Sam sued the company and had his things replaced. "He got a different kind of phone, though."
text_B: His new phone became unusable. ends before Sam buy a new phone
not-entailment.