TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a waterview with multiple boats in the water'. Replace the letter 'r' with 'w' in the sentence.

SOLUTION: a watewview with multiple boats in the watew

PROBLEM: Sentence: 'a white bathroom with a stand alone sink and a shower curtain'. Replace the letter 'a' with 'm' in the sentence.

SOLUTION: m white bmthroom with m stmnd mlone sink mnd m shower curtmin

PROBLEM: Sentence: 'a man sitting on a surfboard in the ocean'. Replace the letter 'a' with 'z' in the sentence.

SOLUTION:
z mzn sitting on z surfbozrd in the ocezn