<http://caligraph.org/ontology/Mars_impact_event>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System> .
<http://caligraph.org/ontology/Modern_Earth_impact_event>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System> .
<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomical_event> .
<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System>	<http://www.w3.org/2000/01/rdf-schema#label>	"Astronomical event of the Solar System" .
<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Astronomical_events_of_the_Solar_System> .
<http://caligraph.org/ontology/Solar_eclipse>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomical_event_of_the_Solar_System> .