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

Input: Consider Input: Sentence: 'a man on the news, watched on the television'. Replace the letter 'o' with 'z' in the sentence.

Output: a man zn the news, watched zn the televisizn

Input: Consider Input: Sentence: 'a cat is watching a computer with a video of a cat'. Replace the letter 't' with 'a' in the sentence.

Output: a caa is waaching a compuaer wiah a video of a caa

Input: Consider Input: Sentence: 'here is a beautiful old steeple in the late afternoon sun'. Replace the letter 'l' with 'o' in the sentence.
Output: here is a beautifuo ood steepoe in the oate afternoon sun