buda-base / owl-schema

BDRC Ontology Schema
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expressing the absence of colophon #56

Closed eroux closed 6 years ago

eroux commented 6 years ago

I'm wondering what the best solution would be to record that a work has no colophon (as opposed to not recording a work's colophon). I can't find any obvious technical solution. There seems to be no null type or litteral. Maybe an empty string?