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

Input: Consider Input: Sentence: 'a male holding a baseball bat standing on a big white star'. Replace the letter 'a' with 'i' in the sentence.

Output: i mile holding i bisebill bit stinding on i big white stir

Input: Consider Input: Sentence: 'there is a young baby that is wearing a tie'. Replace the letter 't' with 'c' in the sentence.

Output: chere is a young baby chac is wearing a cie

Input: Consider Input: Sentence: 'a young man is excitedly biting a slice of pizza'. Replace the letter 'm' with 'f' in the sentence.
Output: a young fan is excitedly biting a slice of pizza