TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a woman on a cell phone on  city street'. Replace the letter 'e' with 'a' in the sentence.

SOLUTION: a woman on a call phona on  city straat

PROBLEM: Sentence: 'a toilet in a bathroom with small white tile on the floor'. Replace the letter 'a' with 'p' in the sentence.

SOLUTION: p toilet in p bpthroom with smpll white tile on the floor

PROBLEM: Sentence: 'people waiting to cross the trolley tracks of a city street'. Replace the letter 't' with 'l' in the sentence.

SOLUTION:
people wailing lo cross lhe lrolley lracks of a cily slreel