<http://caligraph.org/resource/Explorer_3>	<http://caligraph.org/ontology/nextMission>	<http://caligraph.org/resource/Explorer_4> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/alternativeName>	"Explorer IV" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/manufacturer>	<http://caligraph.org/resource/Jet_Propulsion_Laboratory> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/operator>	<http://caligraph.org/resource/Army_Ballistic_Missile_Agency> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/previousMission>	<http://caligraph.org/resource/Explorer_3> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2004/02/skos/core#altLabel>	"4" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/alternativeName>	"1958 Epsilon 1" .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Explorer_4> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Explorer 4" .
<http://caligraph.org/resource/Explorer_5>	<http://caligraph.org/ontology/previousMission>	<http://caligraph.org/resource/Explorer_4> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/operator>	<http://caligraph.org/resource/Jet_Propulsion_Laboratory> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Timeline_of_first_Earth_observation_satellites> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Explorer IV" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/cosparId>	"1958-005A" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/launchDate>	"1958-07-26" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/launchVehicle>	<http://caligraph.org/resource/Juno_I> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/type>	<http://caligraph.org/resource/Earth_science> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/nextMission>	<http://caligraph.org/resource/Explorer_5> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/missionDuration>	"6134400.0" .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Explorer_4" .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Geomagnetic_satellites> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/landingDate>	"1959-10-23" .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Geomagnetic_satellite> .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/type>	<http://caligraph.org/resource/Earth\u0027s_magnetic_field> .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2000/01/rdf-schema#label>	"Explorer 4" .
<http://caligraph.org/resource/Explorer_4>	<http://www.w3.org/2004/02/skos/core#altLabel>	"Explorer&nbsp;4" .
<http://caligraph.org/resource/Explorer_4>	<http://caligraph.org/ontology/satcat>	"00009" .