TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a bench along a forested hiking path'. Replace the letter 'd' with 'u' in the sentence.

SOLUTION: a bench along a foresteu hiking path

PROBLEM: Sentence: 'a red stop signed has been altered to say stop hate'. Replace the letter 'e' with 't' in the sentence.

SOLUTION: a rtd stop signtd has bttn alttrtd to say stop hatt

PROBLEM: Sentence: 'the outdoor bench is surrounded by trees, flowers, and other greenery'. Replace the letter 'i' with 'l' in the sentence.

SOLUTION:
the outdoor bench ls surrounded by trees, flowers, and other greenery