With no explanation, label text_A→text_B with either "False" or "True".
text_A: Sid explained his theory to Mark but he couldn't convince him. The he is more likely to refer to Sid than Mark because Mark  lesson to Sid explanations. but mark couldn't  believe
text_B: In "Sid explained his theory to Mark but he couldn't convince him. ", The he is more likely to refer to Sid than Mark because Mark  lesson to Sid explanations. but mark couldn't  believe
True.