<!DOCTYPE uridef[
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns">
<!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema">
<!ENTITY owl "http://www.w3.org/2002/07/owl">
<!ENTITY xsd "http://www.w3.org/2001/XMLSchema">
<!ENTITY profile "http://www.daml.org/services/owl-s/1.1/Profile.owl">
<!ENTITY DEFAULT "http://www.daml.org/services/owl-s/1.1/ProfileAdditionalParameters.owl">
<!ENTITY country "http://www.daml.org/services/owl-s/1.1/Country.owl">
<!-- <!ENTITY country "http://www.daml.ri.cmu.edu/ont/Country.owl"> -->
]>
/////以上部分都是注释么，但好象又不像?///////////////////////
<!--
This document uses entity types as a shorthand for URIs.
For a version with unexpanded entities, try loading this source
into Internet Explorer.
-->
<rdf:RDF
xmlns:rdf= "&rdf;#"
xmlns:rdfs= "&rdfs;#"
xmlns:owl = "&owl;#"
xmlns:xsd= "&xsd;#"
xmlns:profile= "&profile;#"
xmlns= "&DEFAULT;#"
xml:base= "&DEFAULT;">
//////////////以上一大片我又不知道是什么意思了？////////////////////
<owl:Ontology rdf:about="">
<owl:versionInfo>
$Id: ProfileAdditionalParameters.owl,v 1.10 2004/09/28 06:58:53 martin Exp $
</owl:versionInfo>
<rdfs:comment>
Process and Service Coalition
Additional concepts and definitions that augment the OWL-S Profile
ontology.
These accompany the OWL-S Release
Created by Terry Payne (terryp@cs.cmu.edu).
Modified by Massimo Paolucci (paolucci@cs.cmu.edu)
</rdfs:comment>
<rdfs:seeAlso rdf:resource="http://www.daml.org/services" />
<!--
-->
<owl:imports rdf:resource="&profile;" />
</owl:Ontology>
/////////imports 应该是导入别人XML文档的全部内容吧，那么"&profile"是什么用法？ 是引用么？///////////////////////
<owl:Class rdf:ID="NAICS">
<rdfs:comment>
Hook to the NAICS taxonomy
</rdfs:comment>
<rdfs:subClassOf rdf:resource="&profile;#ServiceCategory"/>
/////////////这句又不明白，虽然可能可以猜到这里是引用profile里的ServiceCategory定义，但& ; # 到底是什么个用法呢？////////////
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&profile;#categoryName"/>
<owl:hasValue>
NAICS
</owl:hasValue>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&profile;#taxonomy"/>
<owl:hasValue>
www.naics.com
</owl:hasValue>
</owl:Restriction>
</rdfs:subClassOf>
</owl:Class>
//烦请大家帮我说说，或者推荐一下看看什么文档也行，先谢了/////////////////
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弱弱的问几个简单的问题，指大家指手之劳帮一下哦！
