<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Environmental_organization_based_in_Massachusetts> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_nature_centers_in_Massachusetts> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/2000/01/rdf-schema#label>	"Nature center in Massachusetts" .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Nature_centers_in_Massachusetts> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Nature_center_in_the_United_States> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/RestrictionHasValue_type_Nature%20center> .
<http://caligraph.org/ontology/Nature_center_in_Massachusetts>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Educational_organization_based_in_Massachusetts> .