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

[EX Q]: Sentence: 'a person under an open umbrella in the sand'. Replace the letter 'd' with 'h' in the sentence.
[EX A]: a person unher an open umbrella in the sanh

[EX Q]: Sentence: 'a bed with white comforter and two black stiletto heels'. Replace the letter 'h' with 's' in the sentence.
[EX A]: a bed wits wsite comforter and two black stiletto seels

[EX Q]: Sentence: 'a long green grain traveling past a white building'. Replace the letter 'w' with 'o' in the sentence.
[EX A]:
a long green grain traveling past a ohite building