Deletes one or more ontologies.
Syntax:
dropModule <module1> [,<module2>,...].
Example:
dropModule "http://acme.com#"#ontology1,"http://acme.com#"#ontology2.
OntoBroker reply:
Modules "http://acme.com#"#ontology1, "http://acme.com#"#ontology2 have been dropped.