instruction:
In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly contradict each other. Generated sentences must be short, with less than 15 words. New information can be introduced. Avoid using pronouns to confuse the subject of the sentence.
question:
Sentence 1: A crowd surrounds a grounded hot air balloon. Sentence 2: Crowd watching someone fly away
answer:
Crowd gathering


question:
Sentence 1: A cowboy on a horse trying to lasso a bull at a rodeo. Sentence 2: A cowboy lassoing a bucking bull.
answer:
A cowboy at the rodeo.


question:
Sentence 1: Two boys are thinking of what they want to buy and two boys picking up money they dropped. Sentence 2: Four boys know each other well.
answer:

Four boys are in the picture.