instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'horses drink and graze the field and water'. Replace the letter 'i' with 'c' in the sentence.
answer:
horses drcnk and graze the fceld and water

question:
Sentence: 'the bus is trying to navigate though the london traffic'. Replace the letter 'a' with 'l' in the sentence.
answer:
the bus is trying to nlviglte though the london trlffic

question:
Sentence: 'a man in a baseball cap watching something in the air'. Replace the letter 'g' with 'o' in the sentence.
answer:
a man in a baseball cap watchino somethino in the air