Conditional insertion of a new concept class to an ontology model - sparql

Question

I am in a learning phase of SPARQL and ontology building. I have a model and I would like to add a new concept class to multiple concepts in a model using regex/filter.
I have following concepts:
A647674
A878678
RR36868
DD36868
The expected output is :
A647674
A878678
RR36868 rdf:type http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule
DD36868 rdf:type http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule
I am using below SPARQL query to do this.
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
INSERT {
?s rdf:type 'http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule' .
}
WHERE
{
{?s ?p ?o .
filter regex(str(?s), "http://ontology.aaaaaaa.com/drugs/aaaaaaa#RR-").
}
union
{?s ?p ?o .
filter regex(str(?s), "http://ontology.aaaaaaa.com/drugs/aaaaaaa#DD").
}
};
#LIMIT 100
I am getting below error using above query.
OmServerGenericException[message="http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule",responseCode=500]
Caused by: org.apache.jena.rdf.model.ResourceRequiredException: "http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule"
Any help is highly appreciated

Answer 1

You are providing a string value:
?s rdf:type 'http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule' .
You need to provide a URI value:
?s rdf:type <http://schemas.aaaaaaa.com/ontologies/drug#SmallMolecule> .
Or you could define a prefix (PREFIX drug: <http://schemas.aaaaaaa.com/ontologies/drug#>) to use it like this:
?s rdf:type drug:SmallMolecule .
(The suggestions given in my answer to your previous question apply here, too: you could use STRSTARTS instead of REGEX, and one FILTER with || instead of UNION.)