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

Sentence: 'two police officers riding horses down the street'. Replace the letter 'o' with 'd' in the sentence.
twd pdlice dfficers riding hdrses ddwn the street

Sentence: 'a man in blazer holding a tie over his eyes'. Replace the letter 's' with 'e' in the sentence.
a man in blazer holding a tie over hie eyee

Sentence: 'a yellow train is coming down the tracks'. Replace the letter 'c' with 'm' in the sentence.
a yellow train is moming down the tramks