Input text: a guillotine. the guillotine's cutting blade is [red]. the [red] is 1 feet long. a huge [paris] wall is 6 feet behind the guillotine. the ground is stone. a man is -2 feet to the right of the guillotine. the man is facing southwest. another man is -2 feet to the left of the guillotine. the man is facing east. a professor is -1 feet south of the guillotine. the professor is -2 feet west of the guillotine. a bucket is in front of the guillotine. a boy is -5 feet above the bucket. the bucket is on the ground. the boy's shirt is clear. another boy is behind the guillotine. the boy is leaning 90 degrees to the north. he is facing east.