<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://purl.org/ontology/bibo/PersonalCommunicationDocument> .
<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/2000/01/rdf-schema#isDefinedBy>	"http://purl.org/ontology/bibo/"^^<http://www.w3.org/2001/XMLSchema#anyURI> .
<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/2000/01/rdf-schema#label>	"Letter"@en .
<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/2000/01/rdf-schema#comment>	"A written or printed communication addressed to a person or organization and usually transmitted by mail."@en .
<http://purl.org/ontology/bibo/Letter>	<http://www.w3.org/2003/06/sw-vocab-status/ns#term_status>	"stable" .