In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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.

Ex Input:
Sentence 1: A man is helping another man after a fall on the street. Sentence 2: The man is behind a good samaritan by helping another man.

Ex Output:
The man never fell.


Ex Input:
Sentence 1: Various people sitting and talking in a room. Sentence 2: there are variety of people giving presentation and doing discussions

Ex Output:
A girl catching a bus in the city.


Ex Input:
Sentence 1: young boys in a martial arts studio practicing punches. Sentence 2: There is a karate master teaching children.

Ex Output:

Young boys are playing.