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: Two men with long hair are sitting on the ground. Sentence 2: Two guys are sitting waiting for a bus.
answer:
Two guys are sitting down.

question:
Sentence 1: A woman who is holding a blue ribbon is standing with one leg on the ground and the other leg in a vertical manner above her waist while most of the rest of her body is in a horizontal position. Sentence 2: A woman is practicing her yoga positions.
answer:
A woman holding a blue ribbon is standing in a yoga pose, with one leg vertical and above her waist.

question:
Sentence 1: A person is using a shovel and working hard. Sentence 2: A person using a black shovel.
answer:
A person using a shovel.