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 little girl is sitting in a suitcase in a library'. Replace the letter 't' with 'l' in the sentence.
[EX A]: a lillle girl is silling in a suilcase in a library

[EX Q]: Sentence: 'a man jumps and grinds on a railing'. Replace the letter 'u' with 'o' in the sentence.
[EX A]:
a man jomps and grinds on a railing