TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a bed with white comforter and two black stiletto heels'. Replace the letter 'h' with 's' in the sentence.

SOLUTION: a bed wits wsite comforter and two black stiletto seels

PROBLEM: Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.

SOLUTION: a family openl giftl in a room with their dog, while litting on couchel

PROBLEM: Sentence: 'a woman in a white shirt is pulling her suitcases'. Replace the letter 'u' with 'p' in the sentence.

SOLUTION:
a woman in a white shirt is pplling her spitcases