TASK DEFINITION: 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.
PROBLEM: Sentence 1: A small child jumps on a colorful toy in the street. Sentence 2: The child is male

SOLUTION: The child is in the street

PROBLEM: Sentence 1: A lecture for a women's group. Sentence 2: A lecture for a women's group about sexual abuse.

SOLUTION: A speach for a women's group.

PROBLEM: Sentence 1: Bike rider jumps off of gray stone rise, does trick in air. Sentence 2: A young biker doing a flip.

SOLUTION:
A person doing a trick.