<http://caligraph.org/ontology/Symbol_introduced_in_1988>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1987>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1982>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1986>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Symbol_introduced_in_1984>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1989>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1981>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Symbols_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol> .
<http://caligraph.org/ontology/Symbol_introduced_in_1983>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s>	<http://www.w3.org/2000/01/rdf-schema#label>	"Symbol introduced in the 1980s" .
<http://caligraph.org/ontology/Symbol_introduced_in_1980>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .
<http://caligraph.org/ontology/Symbol_introduced_in_1985>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Symbol_introduced_in_the_1980s> .