instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a motorcycle sitting on the side of the road by grass'. Replace the letter 'r' with 't' in the sentence.
answer:
a mototcycle sitting on the side of the toad by gtass

question:
Sentence: 'a woman sitting on a wooden chair holding a cat'. Replace the letter 'n' with 'q' in the sentence.
answer:
a womaq sittiqg oq a woodeq chair holdiqg a cat

question:
Sentence: 'a clean, sterile bathroom with a shower, toilet, and sink'. Replace the letter 'n' with 'k' in the sentence.
answer:
a cleak, sterile bathroom with a shower, toilet, akd sikk