united_states | ethnicgroup | asian_americans <tsp> united_states | leadername | barack_obama <tsp> alcatraz_versus_the_evil_librarians | country | united_states <sep> the united states of america (usa or usa), commonly known as the united states (us or us) or america, is a country primarily located in north america it consists of 50 states, a federal district, five major unincorporated territories, nine minor outlying islands, and 326 indian reservations the united states is the world's third-largest country by both land and total area 
the book alcatraz versus the evil librarians comes from the u.s. where barack obama is the leader of the country which includes many asian americans.the united states is the world's third-largest country by both land and total area