<http://caligraph.org/ontology/Centrifugal-flow_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/1940s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/Turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Jet_engine> .
<http://caligraph.org/ontology/1980s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/1960s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/Turbojet_engine>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/1950s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/1930s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/Turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#label>	"Turbojet engine" .
<http://caligraph.org/ontology/Turbojet_engine>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Turbojet_engines> .
<http://caligraph.org/ontology/1970s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/1990s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/2000s_turbojet_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .
<http://caligraph.org/ontology/Axial-compressor_gas_turbine_engine>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Turbojet_engine> .