With no explanation, label text_A→text_B with either "entailment" or "not-entailment".
text_A: Tim's tooth was hurting like crazy. He could barely eat or drink. His dentist took a look around in his mouth. One of his teeth was rotten. "Once the tooth was pulled, Tim felt fine."
text_B: The dentist disposed of the rotten tooth. starts before Tim 's tooth hurt like crazy
not-entailment.