In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a herd of black cattle grazing and lounging in a green field'. Replace the letter 'a' with 'q' in the sentence.

Answer: q herd of blqck cqttle grqzing qnd lounging in q green field


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: 'the two geese are flying by some trees'. Replace the letter 'n' with 'm' in the sentence.

Answer:
the two geese are flyimg by some trees