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

Q: Sentence: 'a back pack and lap top sit on the kitchen counter'. Replace the letter 't' with 'k' in the sentence.

A: a back pack and lap kop sik on khe kikchen counker
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Q: Sentence: 'an overhead view of a city cross walk on a rainy day features an array of colorful umbrellas'. Replace the letter 's' with 'd' in the sentence.

A: an overhead view of a city crodd walk on a rainy day featured an array of colorful umbrellad
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Q: Sentence: 'a bed room with a couch facing towards a big window'. Replace the letter 'd' with 'y' in the sentence.

A:
a bey room with a couch facing towarys a big winyow
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