TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a giraffe standing alone with a low fence behind it'. Replace the letter 't' with 'o' in the sentence.

SOLUTION: a giraffe soanding alone wioh a low fence behind io

PROBLEM: Sentence: 'a woman sitting along the body of water looking at her cell phone'. Replace the letter 'e' with 'b' in the sentence.

SOLUTION: a woman sitting along thb body of watbr looking at hbr cbll phonb

PROBLEM: Sentence: 'group of traffic lights sitting at a slow intersection'. Replace the letter 'r' with 'd' in the sentence.

SOLUTION:
gdoup of tdaffic lights sitting at a slow intedsection