In this task, you need to replace a letter in the sentence with another given letter.

[EX Q]: Sentence: 'a big bowl of brown food halfway in a small oven'. Replace the letter 'v' with 'k' in the sentence.
[EX A]: a big bowl of brown food halfway in a small oken

[EX Q]: Sentence: 'a small bird perched on some thin branches'. Replace the letter 'a' with 'f' in the sentence.
[EX A]: f smfll bird perched on some thin brfnches

[EX Q]: Sentence: 'three horse grazing on grass near a street sign'. Replace the letter 'r' with 'd' in the sentence.
[EX A]:
thdee hodse gdazing on gdass nead a stdeet sign