A supplementary ontology used as a generalization of DOLCE+DnS Ultralite (DUL), in order to deal with the systematic polysemy of many lexical items, whose senses create problems when used as OWL classes. For example, it's customary to find lexical items that carry both a sense of physical or abstract location, of event or event type, etc.
1.1
system
Physical, social, political systems. viticulture, non-linear system, democracy, water system, etc. E.g. viticulture, non-linear system, democracy, water system, etc.
cognitive entity
Attitudes, cognitive abilities, ideologies, psychological phenomena, mind, etc. E.g. discernment, homophobia, precognition, etc.
activity
Any action or task planned or executed by an agent intentionally causing and participating in it. E.g. swimming, shopping, knowledge sharing, etc.
event
natural event
Any natural event, independently of its possible causes. E.g. avalanche, earthquake, brainwave, bonfire, etc.
characteristic
An aspect or quality of a thing. E.g. radial symmetry, poker face, alkalinity, attractiveness, darkness, etc.
topic
Any area, discipline, subject of knowledge. E.g. algebra, avionics, ballet, theology, engineering, etc.
location
A location, in a very generic sense e.g. geo-political entities, or physical object that are inherently located. E.g. Oslo, Australia, Inner Mongolia, resort area, intergalactic space, tundra, tunnel, etc.