Sentence: '1634: The Bavarian Crisis' was preceded by '1634: The Baltic War' which was written by David Weber. What data can be extracted from this sentence?
A: 1634: The Bavarian Crisis, precededBy, 1634: The Baltic War; 1634: The Baltic War, author, David Weber

Sentence: The Atlas II rocket's launch site is Vandenberg AFB Space Launch Complex 3. What data can be extracted from this sentence?
A: Atlas II, launchSite, Vandenberg AFB Space Launch Complex 3

Sentence: Led by a mayor, Ann Arbor (Michigan), has a total area of 74.33 square kilometres, a population density of 1580.7 inhabitants per sq km, and the area code 734. What data can be extracted from this sentence?
A: Ann Arbor, Michigan, leaderTitle, Mayor; Ann Arbor, Michigan, populationDensity, 1580.7 (inhabitants per square kilometre); Ann Arbor, Michigan, areaCode, 734; Ann Arbor, Michigan, areaTotal, 74.33 (square kilometres)

Sentence: African Americans are one of the ethnic groups in the United States. What data can be extracted from this sentence?
A:
United States, ethnicGroup, African Americans