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

Sentence: 'people wait for a train on a snowy sidewalk'. Replace the letter 'n' with 'm' in the sentence.
people wait for a traim om a smowy sidewalk

Sentence: 'adult man on grassy field playing disc game'. Replace the letter 'n' with 'l' in the sentence.
adult mal ol grassy field playilg disc game

Sentence: 'a group of people gather to get on a bus at the bus stop'. Replace the letter 't' with 'k' in the sentence.

a group of people gakher ko gek on a bus ak khe bus skop