Inference rule to generate a relationship between two instances

[Kai Liu]

I have two classes ClassA and ClassB, with each having an ID attribute. ClassA has an additional relationship hasB, which should point to an instance of ClassB, only if the IDs of both instances are equal. Is it possible to define a SHACL inference rule to auto-generate this relationship? The pseudo-code is as follows:

Input:

InstanceA a ClassA.

InstanceA :id "1234".

InstanceB a ClassB.

InstanceB :id "1234".

Expected output:

InstanceA :hasB InstanceB.

Any suggestions are much appreciated. Thanks.

[David Price]

Please see examples in the following spec of how to use SPARQL CONSTRUCT for the most general case of how to infer any triples. There are also built-in SHACL features you might use.

https://w3c.github.io/shacl/shacl-af/#rules-examples

Cheers,

David 

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[Kai Liu]

Yes, these examples helped. I have been able to figure out how to do it. Thanks a lot, David.

Best regards, Kai