input question: Sentence: The ALV X-1 came from the United States, a country where Native Americans are an ethnic group.

Structured data: ALV X-1, countryOrigin, United States; United States, ethnicGroup, Native Americans in the United States

input question: Sentence: Amsterdam Airport Schiphol is 3.3528 below sea level and its fourth runway is made from asphalt.

Structured data: Amsterdam Airport Schiphol, 4thRunwaySurfaceType, "Asphalt"; Amsterdam Airport Schiphol, elevationAboveTheSeaLevel, -3.3528

input question: Sentence: Eric Flint was influenced by Robert A Heinlein.

Structured data: Eric Flint, influencedBy, Robert A. Heinlein

input question: Sentence: A commander in World War II was Chiang Kai-shek.

Structured data:
World War II, commander, Chiang Kai-shek