input: Darinka_Dentcheva | citizenship | United_States United_States | leader | John_Roberts
target: Darinka Dentcheva is a citizen of the United States, the country where John Roberts is one of the leaders.
references: Darinka Dentcheva is a citizen of the United States, the country where John Roberts is one of the leaders. Darinka Dentcheva is a citizen of the United States, where John Roberts serves as one of the countries leaders. John Roberts is a leader in the United States, where Darinka Dentcheva is a citizen.