instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'two men and a dog are standing beside a building'. Replace the letter 'b' with 'y' in the sentence.
answer:
two men and a dog are standing yeside a yuilding


question:
Sentence: 'a no parking sign next to a car riding down a street'. Replace the letter 'g' with 'l' in the sentence.
answer:
a no parkinl siln next to a car ridinl down a street


question:
Sentence: 'a food distributing truck parked near a tree with trashcans near it'. Replace the letter 't' with 'd' in the sentence.
answer:

a food disdribuding druck parked near a dree widh drashcans near id