断断续续地看,不知不觉间《蒙面唱将猜猜猜》第五季也已经来到尾声了,跟上一季一样,这一季的《蒙面唱将猜猜猜》也是只有11期,不同的是这一季的盛典被剪成了两期,所以这周的第10期就是本季蒙面盛典的上半场!
I am trying to write a SPARQL query which should give me all foaf:Agents which aren\'t foaf:Persons. I can\'t see a way to apply 开发者_如何学Cthis OPTIONAL/BOUND construct to this problem, because a