In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'some tracks for a rail way system near a building'. Replace the letter 'a' with 'h' in the sentence.

Answer: some trhcks for h rhil why system nehr h building


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

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


Question: Sentence: 'bull on a busy street in a marketplace'. Replace the letter 'a' with 'k' in the sentence.

Answer:
bull on k busy street in k mkrketplkce