TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a small child reaching back with a wii remote'. Replace the letter 'l' with 'o' in the sentence.

SOLUTION: a smaoo chiod reaching back with a wii remote

PROBLEM: Sentence: 'a girl riding a horse is jumping the log'. Replace the letter 'a' with 't' in the sentence.

SOLUTION: t girl riding t horse is jumping the log

PROBLEM: Sentence: 'a white plate with a sandwich and potato salad'. Replace the letter 'a' with 'p' in the sentence.

SOLUTION:
p white plpte with p spndwich pnd potpto splpd