input question: Sentence: The American Journal of Mathematics is abbreviated to Am. J. Math. and has the impact factor of 1.337.

Structured data: American Journal of Mathematics, impactFactor, "1.337"; American Journal of Mathematics, abbreviation, "Am. J. Math."

input question: Sentence: A Wizard of Mars is published in English, the language that is spoken in Great Britain.

Structured data: A Wizard of Mars, language, English language; English language, spokenIn, Great Britain

input question: Sentence: The Brussels built Audi A1 has a 1.2 litre engine and a 5 speed transmission.

Structured data: Audi A1, engine, 1.2 (litres); Audi A1, transmission, "5-speed manual"; Audi A1, assembly, "Brussels, Belgium"

input question: Sentence: Felipe VI of Spain is the leader of Spain.

Structured data:
Spain, leader, Felipe VI of Spain