{"answers": "D", "options": ["f : ok. when we arrive at the grand canyon , we will do some walking .", "f : no problem . it is wonderful to go boating in florida . i like it .", "f : great . riding a horse in the grand canyon will be exciting .", "f : it sounds wonderful . i can not wait to ride a horse in yellowstone ."], "article": "f : well , here we are in la . where shall we go first ? let 's look at the map . m : i hear the grand canyon is the most beautiful place on earth . in the colorado river goes right through it . f : ok , let 's go there . can we camp near there or do we have to find a hotel ? m : i guess there are no village houses and we wo n't have to spend money on hotels until we had a big city . f : ok , where do we go from there ? m : how about heading north ? it starts to boil in the southwest in the summer . f : then let 's head up and camp a few days in the yellowstone national park . m : great . we can stay one night in salt lake city on the way . then we can go horseback riding and fishing on lake yellowstone in the yellowstone national park . if we go all the way out to some of the remote parts of the park , we can look for bears and other wild animals .", "id": "dev_238"}