In this task, you need to replace a letter in the sentence with another given letter.

[Q]: Sentence: 'a guy looking at a tennis ball with a goofy look'. Replace the letter 'a' with 'x' in the sentence.
[A]: x guy looking xt x tennis bxll with x goofy look


[Q]: Sentence: 'an umbrella sitting on top of a hill next to a body of water'. Replace the letter 't' with 'b' in the sentence.
[A]: an umbrella sibbing on bop of a hill nexb bo a body of waber


[Q]: Sentence: 'a skateboarder riding on the street dragging his hand on the snowy curb'. Replace the letter 't' with 'z' in the sentence.
[A]:
a skazeboarder riding on zhe szreez dragging his hand on zhe snowy curb