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

Ex Input:
Sentence: 'a large elephant that has people all around it'. Replace the letter 'h' with 'm' in the sentence.

Ex Output:
a large elepmant tmat mas people all around it


Ex Input:
Sentence: 'a bathroom with a white toilet next to a large window'. Replace the letter 'w' with 'x' in the sentence.

Ex Output:
a bathroom xith a xhite toilet next to a large xindox


Ex Input:
Sentence: 'a black motorcycle parked in front of a brick wall'. Replace the letter 'r' with 'h' in the sentence.

Ex Output:

a black motohcycle pahked in fhont of a bhick wall