In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a baseball player holding a baseball bat during a baseball game'. Replace the letter 'a' with 'u' in the sentence.

Answer: u busebull pluyer holding u busebull but during u busebull gume


Question: Sentence: 'a man dressed in a knight costume riding a horse performing at a show'. Replace the letter 'e' with 'j' in the sentence.

Answer: a man drjssjd in a knight costumj riding a horsj pjrforming at a show


Question: Sentence: 'a dog sits by and watches his owner'. Replace the letter 'r' with 'q' in the sentence.

Answer:
a dog sits by and watches his owneq