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.

Example Input: Sentence 1: A young Asian girl is purchasing an item from a vending machine. Sentence 2: A girl is getting a soda from a vending machine.
Example Output: A girl is using a vending machine.

Example Input: Sentence 1: A large vehicle drives through a mud puddle. Sentence 2: A man is driving a truck through a puddle of mud
Example Output: There is mud outside

Example Input: Sentence 1: A man wearing a green cap, green shirt and khaki pants is cooking over a fire in the forest Sentence 2: A man is cooking.
Example Output:
A man is cooking over a fire in the forest.