Premise: The Alcatraz Federal Penitentiary or United States Penitentiary , Alcatraz Island ( often just referred to as Alcatraz ) was a maximum high-security federal prison on Alcatraz Island , 1.25 mi off the coast of San Francisco , California , which operated from 1934 to 1963 . Lyft is a transportation network company based in San Francisco , California . San Francisco . San Francisco is the fourth-most populous city in California , after Los Angeles , San Diego , and San Jose , and the 13th-most populous city in the United States -- with a census-estimated 2016 population of 870,887 . A popular tourist destination , San Francisco is known for its cool summers , fog , steep rolling hills , eclectic mix of architecture , and landmarks , including the Golden Gate Bridge , cable cars , the former Alcatraz Federal Penitentiary , Fisherman 's Wharf , and its Chinatown district . The San Francisco Bay Area ( referred to locally as the Bay Area ) is a populous region surrounding the San Francisco and San Pablo estuaries in Northern California .
Hypothesis: San Francisco is outside California.
Label: CONTRADICTION