@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 "2026-07-31T11:09:43.939383".

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

<http://www.productontology.org/doc/Water_softening.rdf> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Water_softening>.
<http://www.productontology.org/doc/Water_softening.ttl> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Water_softening>.
<http://www.productontology.org/doc/Water_softening> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Water_softening>.
	
<http://www.productontology.org/id/Water_softening> a owl:Class;
	rdfs:subClassOf gr:ProductOrService, schema:Product;
	rdfs:label "Water softening"@en;
	rdfs:comment """Water softening is the removal of calcium, magnesium, and a small number of other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes and fittings. Water softening is usually achieved using lime softening or ion-exchange resins, but is increasingly being accomplished using nanofiltration or reverse osmosis membranes. 

(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Water_softening)"""@en;
	rdfs:isDefinedBy <http://www.productontology.org/#>;
	rdfs:label "إزالة قساوة"@ar; 
	rdfs:label "Descalcificador"@ca; 
	rdfs:label "Změkčování vody"@cs; 
	rdfs:label "Wasserenthärtung"@de; 
	rdfs:label "Akvomolado"@eo; 
	rdfs:label "Descalcificador de agua"@es; 
	rdfs:label "Vee pehmendamine"@et; 
	rdfs:label "رسوب‌زدایی"@fa; 
	rdfs:label "Adoucissement de l&#39;eau"@fr; 
	rdfs:label "ריכוך מים"@he; 

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

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