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Children's blocks spell out the words "Google" and "Alphabet" in this arranged photograph taken in Tiskilwa, Illinois, U.S., on Tuesday, Aug. 11, 2015. Google Inc. rose as much as 6.5 percent after reorganizing into a holding company called Alphabet Inc., breaking out its main Web operations from ambitious new endeavors such as research lab Google X and Calico, which seeks to extend human lives. The structure, announced Monday, will give greater clarity into how Google invests in various ventures, including driverless cars, high-speed Internet service and health-related technologies. Photographer: Daniel Acker/Bloomberg via Getty Images

Children's blocks spell out the words "Google" and "Alphabet" in this arranged photograph taken in Tiskilwa, Illinois, U.S., on Tuesday, Aug. 11, 2015. Google Inc. rose as much as 6.5 percent after reorganizing into a holding company called Alphabet Inc., breaking out its main Web operations from ambitious new endeavors such as research lab Google X and Calico, which seeks to extend human lives. The structure, announced Monday, will give greater clarity into how Google invests in various ventures, including driverless cars, high-speed Internet service and health-related technologies. Photographer: Daniel Acker/Bloomberg via Getty Images

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MOUNTAIN VIEW, CA - SEPTEMBER 02: The new Google logo is displayed at the Google headquarters on September 2, 2015 in Mountain View, California. Google has made the most dramatic change to their logo since 1999 and have replaced their signature serif font with a new typeface called Product Sans. (Photo by Justin Sullivan/Getty Images)

MOUNTAIN VIEW, CA - SEPTEMBER 02:  The new Google logo is displayed at the Google headquarters on September 2, 2015 in Mountain View, California.  Google has made the most dramatic change to their logo since 1999 and have replaced their signature serif font with a new typeface called Product Sans.  (Photo by Justin Sullivan/Getty Images)

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MOUNTAIN VIEW, CA - MAY 17: YouTube CEO Susan Wojcicki speaks during the opening keynote address at the Google I/O 2017 Conference at Shoreline Amphitheater on May 17, 2017 in Mountain View, California. Google CEO Sundar Pichai delivered the opening keynote address to kick off the three-day Google I/O 2017 Conference. (Photo by Justin Sullivan/Getty Images)

MOUNTAIN VIEW, CA - MAY 17:  YouTube CEO Susan Wojcicki speaks during the opening keynote address at the Google I/O 2017 Conference at Shoreline Amphitheater on May 17, 2017 in Mountain View, California. Google CEO Sundar Pichai delivered the opening keynote address to kick off the three-day Google I/O 2017 Conference.  (Photo by Justin Sullivan/Getty Images)

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MOUNTAIN VIEW, CA - FEBRUARY 02: U.S. Transportation Secretary Anthony Foxx (R) and Google Chairman Eric Schmidt (L) ride in a Google self-driving car at the Google headquarters on February 2, 2015 in Mountain View, California. U.S. Transportation Secretary Anthony Foxx joined Google Chairman Eric Schmidt for a fireside chat where he unveiled Beyond Traffic, a new analysis from the U.S. Department of Transportation that anticipates the trends and choices facing our transportation system over the next three decades. (Photo by Justin Sullivan/Getty Images)

MOUNTAIN VIEW, CA - FEBRUARY 02:  U.S. Transportation Secretary Anthony Foxx (R) and Google Chairman Eric Schmidt (L) ride in a Google self-driving car at the Google headquarters on February 2, 2015 in Mountain View, California.  U.S. Transportation Secretary Anthony Foxx joined Google Chairman Eric Schmidt for a fireside chat where he unveiled Beyond Traffic, a new analysis from the U.S. Department of Transportation that anticipates the trends and choices facing our transportation system over the next three decades.  (Photo by Justin Sullivan/Getty Images)

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A computer tablet with a WiFi symbol with Google logos in the background is seen in this photo illustration on October 20, 2017. (Photo by Jaap Arriens/NurPhoto via Getty Images)

A computer tablet with a WiFi symbol with Google logos in the background is seen in this photo illustration on October 20, 2017. (Photo by Jaap Arriens/NurPhoto via Getty Images)