https://www.sec.gov/ix?doc=/Archives/edgar/data/1652044/000165204419000015/goog10-qq12019.htm
https://www.sec.gov/ix?doc=/Archives/edgar/data/1652044/000165204419000015/goog10-qq12019.htm
https://www.sec.gov/ix?doc=/Archives/edgar/data/1652044/000165204419000015/goog10-qq12019.htm
https://www.sec.gov/ix?doc=/Archives/edgar/data/1652044/000165204419000015/goog10-qq12019.htm