我想通过 skos:Concept 访问孩子。getChildren("skos:Concept") 和 getChildren("Concept") 都给了我一个空列表,我应该使用什么来代替?
我的示例数据:
<owl:AnnotationProperty rdf:about="&dc;identifier"/>
<owl:ObjectProperty rdf:about="&skos;narrower"/>
<skos:Concept rdf:about="#concept:0_acetylpantolactone:4253501">
<skos:prefLabel xml:lang=""
>0-acetylpantolactone</skos:prefLabel>
<skos:hiddenLabel xml:lang=""
>2(3H)-Furanone, 3-(acetyloxy)dihydro-4,4-dimethyl-, (R)-</skos:hiddenLabel>
<dc:identifier rdf:resource="urn:CHID:028227363"/>
<dc:identifier rdf:resource="urn:MESH:C014305"/>
</skos:Concept>
<skos:Concept rdf:about="#concept:1012S:4202655">
<skos:prefLabel xml:lang="">1012S</skos:prefLabel>
<skos:hiddenLabel xml:lang="" >C19-H16-Cl2-N6-O</skos:hiddenLabel>
<skos:hiddenLabel xml:lang="">Compound 1012S</skos:hiddenLabel>
<dc:identifier rdf:resource="urn:CAS:95211_91_9"/>
<dc:identifier rdf:resource="urn:CHID:095211919"/>
</skos:Concept>