@prefix dcterms: .
@prefix foaf: .
@prefix wdrs: .
@prefix owl: .
@prefix xsd: .
@prefix gr: .
@prefix xml: .
@prefix vcard: .
@prefix dc: .
@prefix rdf: .
@prefix rdfs: .
@prefix pto: .
@prefix schema: .
# 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.
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 ;
rdfs:seeAlso ;
owl:imports ;
owl:versionInfo "2024-03-28T09:14:08.578584".
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a owl:Class;
rdfs:subClassOf gr:ProductOrService, schema:Product;
rdfs:label "Portland cement"@en;
rdfs:comment """Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of portland cement are available. The most common, called ordinary portland cement (OPC), is grey, but white portland cement is also available. Its name is derived from its resemblance to portland stone which was quarried on the Isle of Portland in Dorset, England. It was named by Joseph Aspdin who obtained a patent for it in 1824. His son William Aspdin is regarded as the inventor of "modern" portland cement due to his developments in the 1840s.
The low cost and widespread availability of the limestone, shales, and other naturally occurring materials used in portland cement make it a relatively cheap building material. Its most common use is in the production of concrete, a composite material consisting of aggregate (gravel and sand), cement, and water.
(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Portland_cement)"""@en;
rdfs:isDefinedBy ;
rdfs:label "Portlandsement"@af;
rdfs:label "أسمنت بورتلاندي"@ar;
rdfs:label "পোর্টল্যান্ড সিমেন্ট"@bn;
rdfs:label "Portlandský cement"@cs;
rdfs:label "Portlandcement"@da;
rdfs:label "Zement (Portlandzement)"@de;
rdfs:label "Portlanda cemento"@eo;
rdfs:label "Cemento Portland"@es;
rdfs:label "Portland zementu"@eu;
rdfs:label "سیمان پرتلند"@fa;
rdfs:seeAlso ,
,
;
wdrs:describedby , ;
foaf:homepage ;
foaf:page .