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 <tsp> united_states | ethnicgroup | white_americans <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 
john roberts is the chief justice of the usa which is led by the president. 250 delaware avenue is located in the country which uses the english language and where one of the ethnic groups are white americans.the united states is the world's third-largest country by both land and total area