instruction:
Creating a multiple-choice question from the given context and a 'group' which indicate the focus of the question. The question must come first, separated by <sep> from the candidate answers. The answer to the question does not have to exist in the context.
question:
context: A person is trying to bounce a rubber ball. They drop a first ball onto rubber, a second ball onto brick, a third ball onto asphalt, and a fourth ball onto grass.<sep>group: bouncing
answer:
question: Which ball bounces the least?<sep>A: rubber<sep>B: brick<sep>C: asphalt<sep>D: grass


question:
context: A person is trying to bounce a rubber ball. They drop a first ball onto concrete, a second ball onto foam, a third ball onto steel, and a fourth ball onto rubber.<sep>group: bouncing
answer:
question: Which ball bounces the least?<sep>A: concrete<sep>B: foam<sep>C: steel<sep>D: rubber


question:
context: A person is trying to bounce a rubber ball. They drop a first ball onto foam, a second ball onto steel, a third ball onto concrete, and a fourth ball onto brick.<sep>group: bouncing
answer:

question: Which ball bounces the least?<sep>A: foam<sep>B: steel<sep>C: concrete<sep>D: brick