Sentence: The Alfa Romeo 164(also known as the 168) is a sedan. It has a Straight four engine and is a luxury class vehicle.

What structured data could we extract from this sentence?
Alfa Romeo 164, bodyStyle, Sedan (automobile); Alfa Romeo 164, class, Luxury vehicle; Alfa Romeo 164, engine, Straight-four engine; Alfa Romeo 164, alternativeName, "Alfa Romeo 168"