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 man climbing a mountain. Sentence 2: The man was in a group who climbed the mountain.
The man climbed the mountain.

Sentence 1: Workers brush off the stops in front of a monument, blocked off with traffic cones. Sentence 2: The workers are doing regular maintenance for the monument so it is clean for visitors.
Workers are cleaning the steps in front of a monument that is blocked off.

Sentence 1: Four humans and four dogs lounging in the dining area. Sentence 2: They all just ate.

There are equal humans to dogs.