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 large white dog growling at a large black dog. Sentence 2: A white dog is retaliating at a black dog's growl.
Two dogs are interacting with each other.

Sentence 1: A parade and crowd of people. Sentence 2: A crowd of people watch an Easter parade.
A group of people near a parade.

Sentence 1: A young man standing in front of a red freight car holding a camera and taking a photo. Sentence 2: There is a person  in a railyard taking photos.

There is a teenager standing near a rail car while taking pictures.