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

Ex Input:
Sentence: 'a woman sitting along the body of water looking at her cell phone'. Replace the letter 'e' with 'b' in the sentence.

Ex Output:
a woman sitting along thb body of watbr looking at hbr cbll phonb


Ex Input:
Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

Ex Output:
a crooked street sign on a dauaged sidewalk


Ex Input:
Sentence: 'open air market with racks of fruit and vegetables'. Replace the letter 's' with 'c' in the sentence.

Ex Output:

open air market with rackc of fruit and vegetablec