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

Sentence: 'a cat is watching a computer with a video of a cat'. Replace the letter 't' with 'a' in the sentence.
a caa is waaching a compuaer wiah a video of a caa

Sentence: 'a cat with a pink bow sits underneath something silver'. Replace the letter 'h' with 'n' in the sentence.
a cat witn a pink bow sits underneatn sometning silver

Sentence: 'several men and women discussing with each other'. Replace the letter 'h' with 'c' in the sentence.

several men and women discussing witc eacc otcer

