input question: Sentence: Attica, Indiana is part of the U.S. The population density of Attica Indiana is 783.1 (inhabitants per square kilometre) and its area is 4.14 sq. km.

Structured data: Attica, Indiana, isPartOf, United States; Attica, Indiana, isPartOf, Indiana; Attica, Indiana, areaTotal, 4.14 (square kilometres); Attica, Indiana, populationDensity, 783.1 (inhabitants per square kilometre)

input question: Sentence: Marriott International was founded in Washington, D.C.

Structured data: Marriott International, foundationPlace, Washington, D.C.

input question: Sentence: Albennie Jones stopped performing in 1950.

Structured data: Albennie Jones, activeYearsEndYear, 1950

input question: Sentence: Rhythm and blues musician Ahmet Ertegun's date of birth was 1923. R & B has its origins in Blues and gives itself to the base of Disco.

Structured data:
Ahmet Ertegun, birthYear, 1923; Ahmet Ertegun, genre, Rhythm and blues; Rhythm and blues, stylisticOrigin, Blues; Rhythm and blues, derivative, Disco