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: An authority-figure in a white helmet, wearing a yellow vest, and sitting on a yellow motorcycle. Sentence 2: A police officer sitting on a motorcycle on the road.
A person in a helmet is seated on a motorcycle.

Sentence 1: Two young men take a break and have some fries and other snacks. Sentence 2: They are also eating sandwiches.
The men are hungry.

Sentence 1: A boy in a green shirt is holding a picture of Castro in the street. Sentence 2: A boy holding a large pictures in a frame.

A boy holding a picture of Castro.