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

Sentence: 'a man is posing in a desert, leaning on a sign with an image of a camel on it'. Replace the letter 'i' with 'r' in the sentence.
a man rs posrng rn a desert, leanrng on a srgn wrth an rmage of a camel on rt

Sentence: 'two tennis players shaking hands over the net'. Replace the letter 'n' with 'f' in the sentence.
two teffis players shakifg hafds over the fet

Sentence: 'a window display of antique china is shown'. Replace the letter 'i' with 'p' in the sentence.

a wpndow dpsplay of antpque chpna ps shown