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.

Q: Sentence 1: A guy in a white shirt skateboarding on a ramp. Sentence 2: There is a man doing a trick in the air.

A: A skateboarder rolls along.
****
Q: Sentence 1: Three males wearing a yellow vest with silver stripes and jeans; one is digging with an excavator, and two are using shovels. Sentence 2: Someone is using an orange excavator.

A: Someone is wearing a vest.
****
Q: Sentence 1: Several people walking along a curved walkway inside of a building with various advertisements. Sentence 2: People have come to an indoor sporting event where many sponsors have put up ads.

A:
Several people walking along the walkway inside the build with various advertisements
****