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

Ex Input:
Sentence: 'a little girl laying on a boogie board next to the ocean'. Replace the letter 't' with 'm' in the sentence.

Ex Output:
a limmle girl laying on a boogie board nexm mo mhe ocean


Ex Input:
Sentence: 'a street light is near a large building'. Replace the letter 'n' with 'c' in the sentence.

Ex Output:
a street light is cear a large buildicg


Ex Input:
Sentence: 'a picture of house boats and a long bridge over water on a cloudy day'. Replace the letter 'g' with 'l' in the sentence.

Ex Output:

a picture of house boats and a lonl bridle over water on a cloudy day