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

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


[Q]: Sentence: 'the bus is trying to navigate though the london traffic'. Replace the letter 'a' with 'l' in the sentence.
[A]: the bus is trying to nlviglte though the london trlffic


[Q]: Sentence: 'man in black clothing and red tie playing guitar'. Replace the letter 'k' with 'e' in the sentence.
[A]:
man in blace clothing and red tie playing guitar