TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a person standing on some skis going through the snow'. Replace the letter 'o' with 'l' in the sentence.

SOLUTION: a persln standing ln slme skis gling thrlugh the snlw

PROBLEM: Sentence: 'an older man wearing a suit and tie'. Replace the letter 'i' with 't' in the sentence.

SOLUTION: an older man weartng a sutt and tte

PROBLEM: Sentence: 'a dog in an enclosure with a  herd of sheep'. Replace the letter 'e' with 'l' in the sentence.

SOLUTION:
a dog in an lnclosurl with a  hlrd of shllp