In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.

Answer: a perkon ik waiting for a pizza to come out of an oven fired grill

Question: Sentence: 'a young man playing tennis and preparing to hit the ball'. Replace the letter 'e' with 'c' in the sentence.

Answer: a young man playing tcnnis and prcparing to hit thc ball

Question: Sentence: 'wooden benches sit amongst a floor scratched with "no entry please"'. Replace the letter 'f' with 'e' in the sentence.

Answer:
wooden benches sit amongst a eloor scratched with "no entry please"