United_States | language | English_language United_States | leaderTitle | President_of_the_United_States United_States | leader | John_Roberts 250_Delaware_Avenue | location | United_States United_States | ethnicGroup | White_Americans
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.