TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man on a surfboard riding on the waters waves'. Replace the letter 's' with 'k' in the sentence.

SOLUTION: a man on a kurfboard riding on the waterk wavek

PROBLEM: Sentence: 'a man is standing with this luggage next to a railroad track'. Replace the letter 'g' with 'l' in the sentence.

SOLUTION: a man is standinl with this lullale next to a railroad track

PROBLEM: Sentence: 'a newborn baby laying on a towel getting her hair brushed'. Replace the letter 'r' with 'c' in the sentence.

SOLUTION:
a newbocn baby laying on a towel getting hec haic bcushed