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

Sentence: 'a large clock tower next to a building on a street'. Replace the letter 'c' with 'n' in the sentence.
a large nlonk tower next to a building on a street

Sentence: 'a person is standing in the snow in skis'. Replace the letter 'g' with 'x' in the sentence.
a person is standinx in the snow in skis

Sentence: 'someone is holding a white donut covered in orange sprinkles'. Replace the letter 'm' with 'h' in the sentence.

soheone is holding a white donut covered in orange sprinkles