{"answers": "A", "options": ["m : yeah , the lecture is very helpful to me .", "m : yes , i agree with you , professor brown is always erudite . i like him very much .", "m : i think although the lecture is interesting , it is n't useful for my work .", "m : yes , professor brown 's work is always great ."], "article": "f : this is professor brown 's first lecture . what do you think of it ? m : wonderful ! i have learned quite a lot today , which might be useful for my work after graduation . what 's your opinion ? f : i think so . he is so knowledgeable . his topic is close to our life , and his language is full of humor .", "id": "train_5378"}