{"answers": "C", "options": ["f : thank you . i have come to your store for many times and i believe it must be the best store in new york .", "f : thank you for delivering the piano for free . your service is very good even though your store is not well known .", "f : oh , your are so considerate to deliver the piano for free . i 'm sure i will come back if my daughter need a new one .", "f : your store is not well-known , but i still feel it is worthy to spend $ 1000 in your store to buy a piano for my daughter ."], "article": "f : how much is this piano , please ? m : $ 1000 . f : my god ! that 's a fortune ! m : but you must realize that this is the most famous brand . f : but it 's too dear for me . m : that 's the best piano hit our store . f : i just want to get one for my daughter to learn how to play the piano . m : then how about this one made in new york ? it 's priced at only $ 620 . f : i hope its quality is guaranteed . m : oh , yes , madam . as ours is a well known store , our goods are always dependable . f : can you make it any cheaper ? it 's the first time that i 've visited your store . m : for the first time , i 'll make it an even figure $ 600 . f : thank you . by the way , can you have it delivered ? m : yes , of course , madam . we will deliver it free of charge .", "id": "train_2083"}