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

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 shot looks down on a person riding a long board'. Replace the letter 'o' with 'u' in the sentence.
Example Output: a shut luuks duwn un a persun riding a lung buard

Example Input: Sentence: 'a child watching television changing the station with a remote'. Replace the letter 'n' with 'z' in the sentence.
Example Output:
a child watchizg televisioz chazgizg the statioz with a remote