TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a woman is on skis riding down the snow covered sloped'. Replace the letter 'd' with 'q' in the sentence.

SOLUTION: a woman is on skis riqing qown the snow covereq slopeq

PROBLEM: Sentence: 'a white stove top oven sitting in a kitchen'. Replace the letter 'k' with 'b' in the sentence.

SOLUTION: a white stove top oven sitting in a bitchen

PROBLEM: Sentence: 'a bathroom with a bathtub, sink, and a mirror'. Replace the letter 'a' with 'z' in the sentence.

SOLUTION:
z bzthroom with z bzthtub, sink, znd z mirror