Sentence: The population density of Atlanta is 1299.0 inhabitants per square kilometre and covers 344.9 sq. km. The total area of that city is 347.1 sq. km.

Question: What structured data could we extract from this sentence?

A: Atlanta, areaOfLand, 344.9 (square kilometres); Atlanta, populationDensity, 1299.0 (inhabitants per square kilometre); Atlanta, areaTotal, 347.1 (square kilometres)

Sentence: The CODEN code for Acta Mathematica Hungarica is "AMAHE9".

Question: What structured data could we extract from this sentence?

A: Acta Mathematica Hungarica, codenCode, "AMAHE9"

Sentence: Above the Veil, written by Garth Nix, was produced in print with the ISBN number 0-439-17685-9.

Question: What structured data could we extract from this sentence?

A:
Above the Veil, author, Garth Nix; Above the Veil, mediaType, "Print"; Above the Veil, isbnNumber, "0-439-17685-9"