TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a city street at dusk time with traffic'. Replace the letter 'i' with 'm' in the sentence.

SOLUTION: a cmty street at dusk tmme wmth traffmc

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: 'two young children in open field with kites in background'. Replace the letter 'n' with 'l' in the sentence.

SOLUTION:
two youlg childrel il opel field with kites il backgrould