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

Sentence: 'a memorial with various plaques and american flags on it'. Replace the letter 'a' with 'k' in the sentence.
k memorikl with vkrious plkques knd kmerickn flkgs on it

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.
an overhead view of a city crodd walk on a rainy day featured an array of colorful umbrellad

Sentence: 'blurry close up of a glass bakery counter'. Replace the letter 'a' with 'r' in the sentence.

blurry close up of r glrss brkery counter