premise: Chinatown is an American automobile.
hypothesis: A Chinatown is an ethnic enclave of Chinese or Han people located outside mainland China or Taiwan , most often in an urban setting . Areas known as `` Chinatown '' exist throughout the world , including Asia , Australasia , the Americas , Africa and Europe . Chinatown is a 1974 American neo-noir mystery film , directed by Roman Polanski from a screenplay by Robert Towne , starring Jack Nicholson and Faye Dunaway . The U.S. city of Pittsburgh , Pennsylvania was home to a `` small , but busy '' Chinatown , located at the intersection of Grant Street and Boulevard of the Allies where only two Chinese restaurants remain . Chinatown in Washington , D.C. , is a small , historic borough east of downtown consisting of about 20 ethnic Chinese and other Asian restaurants and small businesses along H and I Streets between 5th and 8th Streets , Northwest .