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

Input: Consider Input: Sentence: 'street sign titled kittery maine state line in green'. Replace the letter 'e' with 'r' in the sentence.

Output: strrrt sign titlrd kittrry mainr statr linr in grrrn

Input: Consider Input: Sentence: 'a red hydrant is sitting on the sidewalk in the city'. Replace the letter 'n' with 'r' in the sentence.

Output: a red hydrart is sittirg or the sidewalk ir the city

Input: Consider Input: Sentence: 'a person standing on some skis going through the snow'. Replace the letter 'o' with 'l' in the sentence.
Output: a persln standing ln slme skis gling thrlugh the snlw