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

Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.
a crooked street sign on a dauaged sidewalk

Sentence: 'a street side tree is filled with candles, teddy bears and balloons'. Replace the letter 'e' with 'c' in the sentence.
a strcct sidc trcc is fillcd with candlcs, tcddy bcars and balloons

Sentence: 'a mobile home is transported by truck through the city'. Replace the letter 'b' with 'a' in the sentence.

a moaile home is transported ay truck through the city