TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.

SOLUTION: a perkon ik waiting for a pizza to come out of an oven fired grill

PROBLEM: Sentence: 'a crowd looking at a trio of planes that are sitting idle'. Replace the letter 'a' with 'e' in the sentence.

SOLUTION: e crowd looking et e trio of plenes thet ere sitting idle

PROBLEM: Sentence: 'a media setup in someone's house with television and stereo'. Replace the letter 'n' with 'p' in the sentence.

SOLUTION:
a media setup ip someope's house with televisiop apd stereo