Revision as of 13:07, 11 October 2022 by André Costa (WMSE)(talk | contribs)(Created a new Property: subclass of, this item is a subclass (subset) of that item; all instances of these items are instances of those items; different from P31 (instance of), e.g.: K2 is an instance of mountain; volcano is a subclass of mountain (and an instance of volcanic landform).)