TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a batter is batting at a baseball game'. Replace the letter 'b' with 'e' in the sentence.

SOLUTION: a eatter is eatting at a easeeall game

PROBLEM: Sentence: 'a person under an open umbrella in the sand'. Replace the letter 'd' with 'h' in the sentence.

SOLUTION: a person unher an open umbrella in the sanh

PROBLEM: Sentence: 'two people traveling down a snow covered road in the day'. Replace the letter 'n' with 'i' in the sentence.

SOLUTION:
two people traveliig dowi a siow covered road ii the day