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

Input: Consider Input: Sentence: 'a waterview with multiple boats in the water'. Replace the letter 'r' with 'w' in the sentence.

Output: a watewview with multiple boats in the watew


Input: Consider Input: Sentence: 'a giraffe and a zebra stare at each other'. Replace the letter 'g' with 'l' in the sentence.

Output: a liraffe and a zebra stare at each other


Input: Consider Input: Sentence: 'hummingbird reaching up into the inside of a flower'. Replace the letter 'i' with 'a' in the sentence.


Output: hummangbard reachang up anto the ansade of a flower