Question:
Planet Express was bought out by Mom's Friendly Delivery Service so they can no longer be a threat.

Who is they referring to in this sentence?
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Answer:
Planet Express


Question:
Dogs are friendlier than cats since they would rather be alone.

Who is they referring to in this sentence?
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Answer:
cats


Question:
The shipping company harvests lobster for their business, since they are considered an exquisite meal.

Who is they referring to in this sentence?
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Answer:
lobster


Question:
Fred drove to Mack's tire shop, and he sold a tire.

Who is he referring to in this sentence?
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Answer:

Mack