instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'two stuffed animal bears  sitting next to a candy bar and a flower pot on a table'. Replace the letter 'd' with 'w' in the sentence.
answer:
two stuffew animal bears  sitting next to a canwy bar anw a flower pot on a table


question:
Sentence: 'an old rusty car sits outside of an old building'. Replace the letter 'o' with 'r' in the sentence.
answer:
an rld rusty car sits rutside rf an rld building


question:
Sentence: 'two airplanes are on a large airport runway'. Replace the letter 'y' with 'c' in the sentence.
answer:

two airplanes are on a large airport runwac