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

[EX Q]: Sentence: 'a white bathroom with a stand alone sink and a shower curtain'. Replace the letter 'a' with 'm' in the sentence.
[EX A]: m white bmthroom with m stmnd mlone sink mnd m shower curtmin

[EX Q]: Sentence: 'a person that is sitting under an umbrella'. Replace the letter 'a' with 'l' in the sentence.
[EX A]: l person thlt is sitting under ln umbrelll

[EX Q]: Sentence: 'a stop sign on a pole in a city'. Replace the letter 'l' with 'r' in the sentence.
[EX A]:
a stop sign on a pore in a city