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.

Ex Input:
Sentence 1: Dog training on the mountain Sentence 2: A dog is taking a class.

Ex Output:
A dog is on a mountain.


Ex Input:
Sentence 1: A toddler is sitting on a wooden horse and smiling. Sentence 2: A little girl is riding on her wooden horse.

Ex Output:
A child is playing on their toy.


Ex Input:
Sentence 1: Two girls decorate a display board. Sentence 2: Two girls are doing an art project for school.

Ex Output:

Two girls are decorating a board.