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

Example Input: Sentence: 'a buddha statue sitting under a cat umbrella'. Replace the letter 'c' with 'h' in the sentence.
Example Output: a buddha statue sitting under a hat umbrella

Example Input: Sentence: 'a clean and organized hotel bedroom with tv'. Replace the letter 'w' with 'p' in the sentence.
Example Output: a clean and organized hotel bedroom pith tv

Example Input: Sentence: 'a person sits in front of a laptop and cats'. Replace the letter 'f' with 'k' in the sentence.
Example Output:
a person sits in kront ok a laptop and cats