{"answers": "B", "options": ["f : so , you will travel to london by car because there is no fast train ?", "f : oh , i got it . since it 's too expensive for you , you will travel to london by bus .", "f : ok , i see . you mean there is a fast train and it 's too cheap for you , so you will travel to london by train .", "f : ok , i see . since it 's too expensive for you , you will travel to london by bus the day after tomorrow ."], "article": "m : mary , i 'm going to london tomorrow . f : oh , yes . are you going by bus ? m : it 's the best way . there is a fast train but it 's too expensive for me .", "id": "train_4367"}