Am 25.09.2014 19:52, schrieb Alain Cuvillier:
Hi all,
why are both the /subclass of/ and /instance of/ properties set for the ethanol (showcase) item? For me ethanol is a single concrete alcohol and it is not a class. There is only one ethanol, with a single chemical formula and structure, so only the /instance of/ property is right for this item ?
I tend to agree with you, but then you can also see it this way: "ethanol" is a class of molecules. Ethanol molecules are instances of that class, which is a subclass of "alcohol(s)".
-- daniel