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- airbnb (firm) (2)
- bed and breakfast accommodations (2)
- electronic commerce (2)
- entrepreneurship (2)
- new business enterprises (2)
- ridesharing (2)
- uber (firm) (2)
- 研究 (2)
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- imaginary wars and battles (1)
- indians (1)
- life on other planets (1)
- peer-to-peer travel (1)
- ranch life (1)
- ranchers (1)
- rodeo performers (1)
- sharing (1)
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