你不能在属性路径中使用变量，所以你实际上不能这样做

You can't use variables in property paths, so you can't actually do

?x ?a/has_stoptimes/rdfs:member ?y

相反，您必须在两者之间使用另一个变量或空白节点:

Instead, you have to use another variable or blank node in between:

?x ?a ?z . ?z has_stoptimes/rdfs:member ?y

?x ?a [ has_stoptimes/rdfs:member ?y ] .