Question:
Kurt flew in Alex's plane, and he thanked him.

Who is he referring to in this sentence?
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Answer:
Kurt


Question:
Excalibur spent time with the stone because it needed a place to wait.

Who is it referring to in this sentence?
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Answer:
Excalibur


Question:
John could not understand his waiter, because he spoke Spanish.

Who is he referring to in this sentence?
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Answer:
his waiter


Question:
A person is more productive on an IDE than a text editor, therefore it should not be used in general practice.

Who is it referring to in this sentence?
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Answer:

a text editor