You will be given a definition of a task first, then some input of the task.
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 motorcycle with number five on front is being ridden by a rider wearing a red helmet. Sentence 2: A motorcycle with a number on it is first in the race.
Output:
A motorcycle with a number on it is being ridden by someone taking head precautions.