In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a couple sits on a bench in the countryside'. Replace the letter 'y' with 'k' in the sentence.

Answer: a couple sits on a bench in the countrkside


Question: Sentence: 'a group of men sitting at a desk with lap top computers'. Replace the letter 'p' with 'z' in the sentence.

Answer: a grouz of men sitting at a desk with laz toz comzuters


Question: Sentence: 'a couple of cooked pizzas in a open stove'. Replace the letter 'e' with 'x' in the sentence.

Answer:
a couplx of cookxd pizzas in a opxn stovx