[知道.rdf
文件包含可以表示三元组的资源列表(我知道可以从以下问题:What's a RDF triple?,也可以通过使用W3C RDF将RDF文件转换为三元组列表)。验证程序)。
。RDF文件的集合代表所有在符合RDF的端点上可用的所有数据吗?
Statement: "Mary" "is a citizen of" "France"
Question: Is Paul a citizen of France?
"Closed world" (for example SQL) answer: No.
"Open world" answer: Unknown.
https://en.wikipedia.org/wiki/Open-world_assumption...您可以点击此链接:Open world assumption and SPARQL in triple stores