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

[Q]: Sentence: 'a crowd stands under a set of lights in the ceiling and one person holds up a cell phone'. Replace the letter 'r' with 'f' in the sentence.
[A]: a cfowd stands undef a set of lights in the ceiling and one pefson holds up a cell phone


[Q]: Sentence: 'vita mix blender with something in it already blended'. Replace the letter 'b' with 'a' in the sentence.
[A]: vita mix alender with something in it already alended


[Q]: Sentence: 'a tennis player reacts during a match in a tennis court'. Replace the letter 'i' with 'k' in the sentence.
[A]:
a tennks player reacts durkng a match kn a tennks court