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

Sentence: 'a fire hydrant with a message painted on it'. Replace the letter 'n' with 'j' in the sentence.
a fire hydrajt with a message paijted oj it

Sentence: 'a spacious bedroom with tidy bed and sofa with cushions'. Replace the letter 'n' with 'c' in the sentence.
a spacious bedroom with tidy bed acd sofa with cushiocs

Sentence: 'a couple of white street signs sitting on top of a pole'. Replace the letter 'n' with 't' in the sentence.

a couple of white street sigts sittitg ot top of a pole