instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a formal dinning room in a stately manor'. Replace the letter 'n' with 'o' in the sentence.
answer:
a formal diooiog room io a stately maoor

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 number of lights on a tall clock tower'. Replace the letter 'e' with 'z' in the sentence.
answer:
a numbzr of lights on a tall clock towzr