@prefix rdf:	<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix schema:	<http://schema.org/> .
schema:material	rdf:type	rdf:Property .
@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .
schema:material	rdfs:label	"material" ;
	rdfs:comment	"e.g. Oil, Watercolour, Acrylic, Linoprint, Marble, Cyanotype, Digital, Lithograph, DryPoint, Intaglio, Pastel, Woodcut, Pencil, Mixed Media, etc." ;
	schema:domainIncludes	schema:VisualArtwork ;
	schema:rangeIncludes	schema:Text ,
		schema:URL .