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 young child stands in a path in a field of sunflowers. Sentence 2: The child is smiling at the flowers that surround her.
There is a child standing outdoors.

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: Dog training on the mountain Sentence 2: A dog is taking a class.

A dog is on a mountain.