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

Q: Sentence: 'a man sitting on a luggage cart inside of an airport'. Replace the letter 't' with 'a' in the sentence.

A: a man siaaing on a luggage cara inside of an airpora
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Q: Sentence: 'a formal dinning room in a stately manor'. Replace the letter 'n' with 'o' in the sentence.

A: a formal diooiog room io a stately maoor
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Q: Sentence: 'an older black desktop computer running windows operating system'. Replace the letter 'd' with 'r' in the sentence.

A:
an olrer black resktop computer running winrows operating system
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