Generate an approximately fifteen-word sentence that describes all this data: United States, ethnicGroup, African Americans; United States, leaderTitle, President of the United States; English language, spokenIn, Great Britain; United States, language, English language; A Wizard of Mars, country, United States
A Wizard of Mars was Published in the United States, where African Americans are one ethnic group and the leader is called a President. The language spoken there is English, originated in Great Britain.