@prefix dcterms: <http://purl.org/dc/terms/>.
@prefix foaf: <http://xmlns.com/foaf/0.1/>.
@prefix wdrs: <http://www.w3.org/2007/05/powder-s#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix gr: <http://purl.org/goodrelations/v1#>.
@prefix xml: <http://www.w3.org/XML/1998/namespace>.
@prefix vcard: <http://www.w3.org/2006/vcard/ns#>.
@prefix dc: <http://purl.org/dc/elements/1.1/>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix pto: <http://www.productontology.org/id/>.
@prefix schema: <http://schema.org/>.


# OWL DL work-arounds (instead of imports)
dc:contributor a owl:AnnotationProperty.
dc:creator a owl:AnnotationProperty.
dc:rights a owl:AnnotationProperty.
dc:subject a owl:AnnotationProperty.
dc:title a owl:AnnotationProperty.
dcterms:license a owl:AnnotationProperty.
wdrs:describedby a owl:AnnotationProperty.
foaf:Document a owl:Class.
foaf:homepage a owl:AnnotationProperty.
foaf:page a owl:AnnotationProperty.
foaf:primaryTopic a owl:AnnotationProperty.
schema:Product a owl:Class.


#OWL 1 DL compatibility of the OWL2 deprecated property
owl:deprecated a owl:AnnotationProperty.

<http://www.productontology.org/#> 	a owl:Ontology;
	dc:title "PTO: The Product Types Ontology for Semantic Web-based E-Commerce"@en;
	rdfs:comment """The Product Types Ontology: Good identifiers for product types based on Wikipedia

This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia.

Vocabulary:    http://www.productontology.org/#
Namespace:     http://www.productontology.org/

The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers.

See http://purl.org/goodrelations/ for more information."""@en;
	rdfs:label "The Product Types Ontology for Semantic Web-based E-Commerce"@en;
	dc:contributor "The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia."@en;
	dc:creator "Martin Hepp"@en;
	dc:rights "The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license."@en;
	dc:subject "E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia"@en;
	dcterms:license <http://creativecommons.org/licenses/by-sa/3.0/>;
	rdfs:seeAlso <http://purl.org/goodrelations/v1>;
	owl:imports <http://purl.org/goodrelations/v1>;
	owl:versionInfo "2026-08-28T18:24:19.721893".

<http://www.productontology.org/> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/#>.

<http://www.productontology.org/doc/Ignition_system.rdf> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Ignition_system>.
<http://www.productontology.org/doc/Ignition_system.ttl> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Ignition_system>.
<http://www.productontology.org/doc/Ignition_system> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Ignition_system>.
	
<http://www.productontology.org/id/Ignition_system> a owl:Class;
	rdfs:subClassOf gr:ProductOrService, schema:Product;
	rdfs:label "Ignition system"@en;
	rdfs:comment """Ignition systems are used by heat engines to initiate combustion by igniting the fuel-air mixture. In a spark ignition versions of the internal combustion engine (such as petrol engines), the ignition system creates a spark to ignite the fuel-air mixture just before each combustion stroke. Gas turbine engines and rocket engines normally use an ignition system only during start-up.
Diesel engines use compression ignition to ignite the fuel-air mixture using the heat of compression and therefore do not use an ignition system. They usually have glowplugs that preheat the combustion chamber to aid starting in cold weather.
Early cars used ignition magneto and trembler coil systems, which were superseded by Distributor-based systems (first used in 1912). Electronic ignition systems (first used in 1968) became common towards the end of the 20th century, with coil-on-plug versions of these systems becoming widespread since the 1990s. 

(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Ignition_system)"""@en;
	rdfs:isDefinedBy <http://www.productontology.org/#>;
	rdfs:label "Ontstekingstelsel"@af; 
	rdfs:label "نظام الإشعال"@ar; 
	rdfs:label "Encesa del motor"@ca; 
	rdfs:label "سیستەمی داگیرساندن"@ckb; 
	rdfs:label "Zapalování"@cs; 
	rdfs:label "Zündung (Verbrennungsmotor)"@de; 
	rdfs:label "Encendido del motor"@es; 
	rdfs:label "سامانه جرقه‌زنی"@fa; 
	rdfs:label "Sytytysjärjestelmä"@fi; 
	rdfs:label "Allumage d&#39;un moteur"@fr; 

	rdfs:seeAlso <http://www.productontology.org/>,
		<http://dbpedia.org/resource/Ignition_system>,
		<http://www.productontology.org/doc/Ignition_system>;

	wdrs:describedby <http://www.productontology.org/doc/Ignition_system.rdf>, <http://www.productontology.org/doc/Ignition_system.ttl>;
	foaf:homepage <http://www.productontology.org/doc/Ignition_system.html>;
	foaf:page <http://en.wikipedia.org/wiki/Ignition_system>.