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:
Jim taught John rhetoric to become a lawyer, but he did not get paid.

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


Question:
The government placed a tax on the product so it got more expensive.

Who is it referring to in this sentence?
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Answer:
the product


Question:
Keith fired Blaine but he did not regret.

Who is he referring to in this sentence?
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Answer:

Keith