In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a man sitting on a luggage cart inside of an airport'. Replace the letter 't' with 'a' in the sentence.

Answer: a man siaaing on a luggage cara inside of an airpora

Question: Sentence: 'closeup of two teddy bears in red scarves and a brown teddy bear'. Replace the letter 'i' with 'y' in the sentence.

Answer: closeup of two teddy bears yn red scarves and a brown teddy bear

Question: Sentence: 'a man surfing in the water on a waves in the ocean'. Replace the letter 't' with 'w' in the sentence.

Answer:
a man surfing in whe wawer on a waves in whe ocean