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

[Q]: Sentence: 'a couple sits on a bench in the countryside'. Replace the letter 'y' with 'k' in the sentence.
[A]: a couple sits on a bench in the countrkside


[Q]: Sentence: 'a red train moves over snowy rail road tracks'. Replace the letter 'v' with 'w' in the sentence.
[A]: a red train mowes ower snowy rail road tracks


[Q]: Sentence: 'a group of people riding on top of snow boarding equipment'. Replace the letter 'e' with 'x' in the sentence.
[A]:
a group of pxoplx riding on top of snow boarding xquipmxnt