TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a close shot of a stop sign near a building'. Replace the letter 'b' with 'u' in the sentence.

SOLUTION: a close shot of a stop sign near a uuilding

PROBLEM: Sentence: 'the baseball player is swinging his bat as the player gets ready to catch'. Replace the letter 'h' with 'o' in the sentence.

SOLUTION: toe baseball player is swinging ois bat as toe player gets ready to catco

PROBLEM: Sentence: 'a crowd of people by a school bus and a girl holding a big blue bowl'. Replace the letter 'l' with 'z' in the sentence.

SOLUTION:
a crowd of peopze by a schooz bus and a girz hozding a big bzue bowz