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e.g. Painting, Drawing, Scupture, Print, Photograph, Assemblage, Collage, etc.
e.g. Oil, Watercolour, Acrylic, Linoprint, Marble, Cyanotype, Digital, Lithograph, DryPoint, Intaglio, Pastel, Woodcut, Pencil, Mixed Media, etc.
todo: what about edition; is a general CreativeWork editions model possible? What does "For multiples such as prints, the number of copies in the edition
" mean in practice?