TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'stone and white colored structure in front of white modern building'. Replace the letter 'r' with 'p' in the sentence.

SOLUTION: stone and white coloped stpuctupe in fpont of white modepn building

PROBLEM: Sentence: 'a man is on a bed with a cat and laptop computer'. Replace the letter 'e' with 'n' in the sentence.

SOLUTION: a man is on a bnd with a cat and laptop computnr

PROBLEM: Sentence: 'a seagull is flying with wings spread in front of a blue sky and blue watered beach'. Replace the letter 'i' with 'p' in the sentence.

SOLUTION:
a seagull ps flypng wpth wpngs spread pn front of a blue sky and blue watered beach