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

Example Input: Sentence: 'a man swinging at a tennis with a racquet on a court'. Replace the letter 't' with 'c' in the sentence.
Example Output: a man swinging ac a cennis wich a racquec on a courc

Example Input: Sentence: 'a male holding a baseball bat standing on a big white star'. Replace the letter 'a' with 'i' in the sentence.
Example Output: i mile holding i bisebill bit stinding on i big white stir

Example Input: Sentence: 'a red utility cart in the center of a wood floored kitchen'. Replace the letter 'i' with 'x' in the sentence.
Example Output:
a red utxlxty cart xn the center of a wood floored kxtchen