Data: United States, capital, Washington, D.C.; A Wizard of Mars, country, United States; United States, ethnicGroup, Native Americans in the United States

A Wizard of Mars comes from the United States where Native Americans are one of the ethnic groups and the capital city is Washington D.C.

Data: France, leader, Manuel Valls

The leader of France is Manuel Valls.

Data: United States, ethnicGroup, African Americans; English language, spokenIn, Great Britain; United States, capital, Washington, D.C.; United States, language, English language; A Wizard of Mars, country, United States
A Wizard of Mars was published in the United States, where English is spoken (as in Great Britain). The US includes many African Americans, and its capital city is Washington D.C.