@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix x: <http://purl.org/stuff/astro#> .

x:Star rdf:type rdfs:Class .
x:Constellation rdf:type  rdfs:Class .
x:A3_Dwarf rdfs:subClassOf x:Star .
x:magnitude rdf:type rdf:Property .
x:partOf  rdf:type rdf:Property .
x:hasName  rdf:type rdf:Property .