united_states | ethnicgroup | african_americans <tsp> united_states | language | english_language <tsp> united_states | leadertitle | president_of_the_united_states <tsp> united_states | leadername | john_roberts <tsp> 250_delaware_avenue | location | 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 president is the primary leader of english language speaking united states. (includes leader john roberts). has the ethnic african american group and is home to 250 delaware avenue.the united states is the world's third-largest country by both land and total area