. . "Product or service model" . _:vb870989 . . . . . . . . . . _:vb871070 . . . . . "A product or service model is a intangible entity that specifies some characteristics of a group of similar, usually mass-produced products, in the sense of a prototype. In case of mass-produced products, there exists a relation gr:hasMakeAndModel between the actual product or service (gr:Individual or gr:SomeItems) and the prototype (gr:ProductOrServiceModel). GoodRelations treats product or service models as \"prototypes\" instead of a completely separate kind of entities, because this allows using the same domain-specific properties (e.g. gr:weight) for describing makes and models and for describing actual products.\n\nExamples: Ford T, Volkswagen Golf, Sony Ericsson W123 cell phone\n\nNote: An actual product or service (gr:Individual) by default shares the features of its model (e.g. the weight). However, this requires non-standard reasoning. See http://wiki.goodrelations-vocabulary.org/Axioms for respective rule sets.\n\t\nCompatibility with schema.org: This class is (approximately) a subclass of http://schema.org/Product." . . .