Use exists node(iri) to match literal with stardog rule?

Support
1

exist tripples

:gta a :Game  ;
  :name "gta" ;
  :gen :OpenWorld .

:diablo a :Game ;
  :gen :RPG .

:justcause a :Game ;
    :name "just cause" ;
  :gen :OpenWorld .

:me :comment "i like gta and just cause".

any possible to use exist resource to make this rule work by not hardcode literal value?

[] a rule:SPARQLRule ;
        rule:content """
            IF {
                ?person :comment ?comment .
                FILTER (regex(?comment, "gta|just cause")) . 
                FILTER (regex(?comment, "like")) .
            }
            THEN {
                ?person a :OpenWorldGamer .
            }
        """ .
    

[] a rule:SPARQLRule ;
        rule:content """
            IF {
                ?person :comment ?comment .
                FILTER (regex(?comment, "gta|just cause")) . 
                FILTER (regex(?comment, "don't like")) .
            }
            THEN {
                ?person a :NotAnOpenWorldGamer .
            }
        """ .
2

No, you cannot really parameterise rules (or axioms) in this way. You'd have to move the parameterised part into queries and use different values in different queries.

Cheers,
Pavel

3

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