TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a person holding a small remote key chain'. Replace the letter 'n' with 'j' in the sentence.

SOLUTION: a persoj holdijg a small remote key chaij

PROBLEM: Sentence: 'a person flying a kite on the beach  between some trees'. Replace the letter 's' with 'k' in the sentence.

SOLUTION: a perkon flying a kite on the beach  between kome treek

PROBLEM: Sentence: 'a young woman with her arms around two young professional men'. Replace the letter 'g' with 'x' in the sentence.

SOLUTION:
a younx woman with her arms around two younx professional men