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

Example Input: Sentence: 'a man loads bananas high on top of a banana truck'. Replace the letter 'f' with 'c' in the sentence.
Example Output: a man loads bananas high on top oc a banana truck

Example Input: Sentence: 'a cake, pitcher, bowl and package of frosting sitting on a table'. Replace the letter 't' with 'g' in the sentence.
Example Output: a cake, pigcher, bowl and package of frosging sigging on a gable

Example Input: Sentence: 'a group of people are paddling a boxy boat through water'. Replace the letter 'n' with 'a' in the sentence.
Example Output:
a group of people are paddliag a boxy boat through water