In this task, you need to replace a letter in the sentence with another given letter.
--------
Question: Sentence: 'a mouse and keyboard sitting on a wooden desk'. Replace the letter 'a' with 'n' in the sentence.

Answer: n mouse nnd keybonrd sitting on n wooden desk


Question: Sentence: 'a gray and white cat sleeping on top of a laptop computer'. Replace the letter 'l' with 'g' in the sentence.

Answer: a gray and white cat sgeeping on top of a gaptop computer


Question: Sentence: 'several sinks are lined up against a wall'. Replace the letter 'g' with 'w' in the sentence.

Answer:
several sinks are lined up awainst a wall