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

Input: Consider Input: Sentence: 'a couple giraffes walking through a fielded area'. Replace the letter 'e' with 'c' in the sentence.

Output: a couplc giraffcs walking through a ficldcd arca


Input: Consider Input: Sentence: 'a gate with a stop sign blocking the road'. Replace the letter 'h' with 'y' in the sentence.

Output: a gate wity a stop sign blocking tye road


Input: Consider Input: Sentence: 'a lady holding a lite cake while a man holding a baby looks on'. Replace the letter 'b' with 'v' in the sentence.


Output: a lady holding a lite cake while a man holding a vavy looks on