I am using Protege
to explore the SSN ontology,
but a lot of classes like the survivalRange seem to be missing from the main file.
How could I import all the classes and entities of the ssn-system
,
without importing them manually one by one by the IRI?
You can import http://www.w3.org/ns/ssn/systems/
, which itself imports http://www.w3.org/ns/ssn/
.