<http://caligraph.org/ontology/2020_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2020s_disaster_in_Nigeria> .
<http://caligraph.org/ontology/2021_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2020s_disaster_in_Nigeria> .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2020s_disaster_in_Africa> .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2020s_disaster> .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Disaster_in_Nigeria> .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#label>	"2020s disaster in Nigeria" .
<http://caligraph.org/ontology/2020s_disaster_in_Nigeria>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:2020s_disasters_in_Nigeria> .
<http://caligraph.org/ontology/2022_disaster_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2020s_disaster_in_Nigeria> .