@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 "2026-09-21T09:26:17.216916".

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

<http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system.rdf> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Hindu%E2%80%93Arabic_numeral_system>.
<http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system.ttl> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Hindu%E2%80%93Arabic_numeral_system>.
<http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Hindu%E2%80%93Arabic_numeral_system>.
	
<http://www.productontology.org/id/Hindu%E2%80%93Arabic_numeral_system> a owl:Class;
	rdfs:subClassOf gr:ProductOrService, schema:Product;
	rdfs:label "Hindu–Arabic numeral system"@en;
	rdfs:comment """ 
The Hindu–Arabic numeral system (also known as the Indo-Arabic numeral system, Hindu numeral system, and Arabic numeral system)is a base ten (decimal) positional numeral system. It is presently the most common decimal system.
The system was invented between the 1st and 4th centuries by Indian mathematicians. By the 9th century, the system was adopted by Arabic mathematicians who extended it to include fractions. It became more widely known through the writings in Arabic of the Persian mathematician Al-Khwārizmī (On the Calculation with Hindu Numerals, ) and Arab mathematician Al-Kindi (On the Use of the Hindu Numerals, ). The system had spread to medieval Europe by the High Middle Ages, notably following Fibonacci&#39;s 13th century Liber Abaci; until the evolution of the printing press in the 15th century, use of the system in Europe was mainly confined to Northern Italy.
It is based upon ten glyphs representing the numbers from zero to nine, and allows representing any natural number by a unique sequence of these glyphs. The symbols (glyphs) used to represent the system are in principle independent of the system itself. The glyphs in actual use are descended from Brahmi numerals and have split into various typographical variants since the Middle Ages.
These symbol sets can be divided into three main families: Eastern Arabic numerals used in the Middle East; Indian numerals in various scripts used in the Indian subcontinent; and Western Arabic numerals used everywhere else. 

(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Hindu–Arabic_numeral_system)"""@en;
	rdfs:isDefinedBy <http://www.productontology.org/#>;
	rdfs:label "نظام العد الهندي العربي"@ar; 
	rdfs:label "हिंदू–अरबी अंक सिस्टम"@bh; 
	rdfs:label "হিন্দু-আরবি সংখ্যা পদ্ধতি"@bn; 
	rdfs:label "Sistema de numeració Hindú-Àrab"@ca; 
	rdfs:label "Indicko-arabská číselná soustava"@cs; 
	rdfs:label "System rhifolion Hindŵ-Arabaidd"@cy; 
	rdfs:label "Hindu-arabertal systemet"@da; 
	rdfs:label "Hind–araba nombrosistemo"@eo; 
	rdfs:label "Numeración indo-arábiga"@es; 
	rdfs:label "Indo-arabiar zenbaki-sistema"@eu; 

	rdfs:seeAlso <http://www.productontology.org/>,
		<http://dbpedia.org/resource/Hindu%E2%80%93Arabic_numeral_system>,
		<http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system>;

	wdrs:describedby <http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system.rdf>, <http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system.ttl>;
	foaf:homepage <http://www.productontology.org/doc/Hindu%E2%80%93Arabic_numeral_system.html>;
	foaf:page <http://en.wikipedia.org/wiki/Hindu%E2%80%93Arabic_numeral_system>.