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.

Sentence 1: There is an old man knitting hats while sitting on a pile of rocks. Sentence 2: old man knitting hat while sitting on a pile of rock
man eating dinner at a beach side restaurant

Sentence 1: A boy selling lemonade for$ 1 rides his bike with no hands as he advertises his product to a long line of people. Sentence 2: The  boy is selling lemonade for a $1.
A boy selling cookies to a group of people.

Sentence 1: In front of a decorated Christmas tree, four adults and two children sit or stand amongst gifts, and one of the adults gives a child a drink of water. Sentence 2: It is the Christmas season.

The room the adults and children are in is bare of any decoration.