Hello,I am trying to excute this rule in Jena: [r1: (?c http://somewhere#rel1 ?price) (?c http://somewhere#rel2 ?value) lessThan(?price, ?value) -> (?y http://somewhere#AnyRelation 'Some Text')] I have two questions:1- I would like ?y to be a specific instance of a specific class and created during the excution of the rule. How to create that instance in the rule? if it can be, is there a way that instance to be not blank node? I found this in the Jena documentations:
makeInstance(?x, ?p, ?v)makeInstance(?x, ?p, ?t, ?v) but I do not know how to use it because ?v is the blank node so what is ?x? 2- How to add prefixes in rules? ThanksAbdul
