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

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

Sentence: 'a baseball player up to bat that just hit the ball'. Replace the letter 'r' with 'o' in the sentence.
a baseball playeo up to bat that just hit the ball

Sentence: 'a banana with a razor blade in it made to look like an operation'. Replace the letter 'w' with 'c' in the sentence.

a banana cith a razor blade in it made to look like an operation