Premise: San Francisco ( initials SF ) ( [ sæn_frənˈsɪskoʊ ] , Spanish for Saint Francis ; Spanish : [ san franˈsisko ] ) , officially the City and County of San Francisco , is the cultural , commercial , and financial center of Northern California . Located at the north end of the San Francisco Peninsula , San Francisco is about 47.9 sqmi in area , making it the smallest county -- and the only consolidated city-county -- within the state of California . The California Gold Rush of 1849 brought rapid growth , making it the largest city on the West Coast at the time .
Hypothesis: There is a city called San Francisco.
Label: ENTAILMENT