<http://demo.openlinksw.com/schemas/postgres/created_at>	<http://www.w3.org/2000/01/rdf-schema#isDefinedBy>	<http://demo.openlinksw.com/schemas/postgres/> .
<http://demo.openlinksw.com/schemas/postgres/created_at>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#DatatypeProperty> .
<http://demo.openlinksw.com/schemas/postgres/created_at>	<http://www.w3.org/2000/01/rdf-schema#range>	<http://www.w3.org/2001/XMLSchema#dateTime> .
<http://demo.openlinksw.com/schemas/postgres/created_at>	<http://www.w3.org/2000/01/rdf-schema#label>	"created_at" .
<http://demo.openlinksw.com/schemas/postgres/created_at>	<http://www.w3.org/2000/01/rdf-schema#domain>	<http://demo.openlinksw.com/schemas/postgres/studies> .