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

[EX Q]: Sentence: 'giraffe standing on a pile of rocks reaching up to a branch with its mouth'. Replace the letter 'g' with 'n' in the sentence.
[EX A]: niraffe standinn on a pile of rocks reachinn up to a branch with its mouth

[EX Q]: Sentence: 'a zebra patterned set of hair brushes sitting on each other'. Replace the letter 'r' with 'a' in the sentence.
[EX A]: a zebaa patteaned set of haia baushes sitting on each othea

[EX Q]: Sentence: 'a elephant is getting some bark off a tree'. Replace the letter 'i' with 'n' in the sentence.
[EX A]:
a elephant ns gettnng some bark off a tree