Uber Technologies Inc. Application Demonstration [Getty Images]

An Uber Japan Co. employee reserves a car using the Uber application on an Apple Inc. iPhone 5s during a demonstration in the company's office in Tokyo, Japan, on Wednesday, March 5, 2014. Uber Technologies Inc., the booking-app developer backed by Google Inc.s investment arm and Amazon.com Inc. founder Jeff Bezos, expanded to Tokyo using licensed taxi operators rather than private drivers. Photographer: Junko Kimura-Matsumoto/Bloomberg via Getty Images

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