| http://www.w3.org/ns/prov#value | - Either the object has a documented provenance or it does not and in the latter case a truly reputable dealer would not touch it.If a hypothetical dodgy dealer was slipping illictly-obtained goods onto the market alongside other items, how on earth - given the current state of the facilities offered by dealers such as the ones mentioned here to would-be ethical collectors to check - would it be pos
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