In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a row of lawn chairs with umbrellas over them'. Replace the letter 'e' with 'x' in the sentence.

Answer: a row of lawn chairs with umbrxllas ovxr thxm

Question: Sentence: 'two cats sitting on an office chair next to a desk'. Replace the letter 's' with 'j' in the sentence.

Answer: two catj jitting on an office chair next to a dejk

Question: Sentence: 'a bathroom sink and mirror with a light that is on above it'. Replace the letter 'a' with 'z' in the sentence.

Answer:
z bzthroom sink znd mirror with z light thzt is on zbove it