The description at https://jena.apache.org/documentation/ontology/ talks about reading an ontology in as the base graph. Import closure puts each imported ontology into its own graph to produce a "compound document." What happens if I read more than one ontology into the same OntModel? Are they merged into a single base graph?
It says all updates change the base model, in the event a write is done. Am I correct in assuming "change" refers to things like calling OntModel methods, and that while reasoners may affect results returned by SPARQL queries or Graph contains methods, reasoning will not "change" the base model in that sense.
