<http://caligraph.org/ontology/Discovery_by_the_Palomar%E2%80%93Leiden_survey>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomical_discovery> .
<http://caligraph.org/ontology/Discovery_by_the_Palomar%E2%80%93Leiden_survey>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Discoveries_by_the_Palomar%E2%80%93Leiden_survey> .
<http://caligraph.org/ontology/Discovery_by_the_Palomar%E2%80%93Leiden_survey>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Discovery_by_the_Palomar%E2%80%93Leiden_survey>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Planet> .
<http://caligraph.org/ontology/Discovery_by_the_Palomar%E2%80%93Leiden_survey>	<http://www.w3.org/2000/01/rdf-schema#label>	"Discovery by the Palomar\u2013Leiden survey" .