Sentence: The cars, the Seat Ibiza, Volkswagen Polo Mk3 and Audi A1 are considered related means of transportation as they are similar types of vehicle.

What structured data could we extract from this sentence?
Audi A1, relatedMeanOfTransportation, SEAT Ibiza; SEAT Ibiza, relatedMeanOfTransportation, Volkswagen Polo Mk3