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

Example Input: Sentence: 'a man that is holding a remote to a game'. Replace the letter 'a' with 'z' in the sentence.
Example Output: z mzn thzt is holding z remote to z gzme

Example Input: Sentence: 'a wooden table topped with lots of sandwiches'. Replace the letter 's' with 'd' in the sentence.
Example Output: a wooden table topped with lotd of dandwiched

Example Input: Sentence: 'a clock tower looking up from the bottom has a caricature of a man and a clock'. Replace the letter 'o' with 'r' in the sentence.
Example Output:
a clrck trwer lrrking up frrm the brttrm has a caricature rf a man and a clrck