instruction:
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.
question:
Sentence 1: A person is walking up stairs between two buildings. Sentence 2: The person is headed towards the roof of the building.
answer:
A person is going up the stairs.


question:
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.
answer:
Workers are cleaning the steps in front of a monument that is blocked off.


question:
Sentence 1: Two toddler boys, one in a plaid shirt, the other wearing a t-shirt and bib, are seated in yellow chairs embedded in a table. Sentence 2: Two brothers are sitting besides each other for dinner.
answer:

The boy wearing the bib is younger than the boy in the plaid shirt.