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 global group race car. Sentence 2: The sponsor of the race car is Global Group.
A race car.

Sentence 1: A woman in a black dress is leaning against a wall, smoking a cigarette. Sentence 2: The woman is sad
A woman is smoking

Sentence 1: A door in a tall concrete wall Sentence 2: A door in a wall of at stone building.

A door in a wall.