http://www.example.com/teach.rdfs/John http://www.example.com/teach.rdfs#position "Full Professor"
http://www.example.com/teach.rdfs/John http://www.example.com/teach.rdfs#course"Math"
http://www.example.com/teach.rdfs/John http://www.example.com/teach.rdfs#student"Undergraduate"
http://www.example.com/teach.rdfs/Arthur http://www.example.com/teach.rdfs#position "Assistant Professor"
http://www.example.com/teach.rdfs/Arthur http://www.example.com/teach.rdfs#course"Web Engineering"
http://www.example.com/teach.rdfs/Arthur http://www.example.com/teach.rdfs#student"Graduate"
提取从一个RDF三元谓语比较对象(名称),如果这些是三元和我想找到助理教授谁教研究生如何使用SPARQL
Lecturer Position
Arthur Assistant Professor
它是如何可能使用SPARQL提取上述日期