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.

Sentence 1: A group of people pause to review a painting at a museum. Sentence 2: The painting is the Mona Lisa.
The people are looking at a painting.

Sentence 1: A woman and a young boy are standing at the back of a red train car. Sentence 2: The mom and son are taking the train cross country.
The woman and boy are standing at the back of the car.

Sentence 1: Two men jumping into a pool to race across to the other side. Sentence 2: The pool is Olympic sized.

There are people jumping into a pool.