(1) What kinds of things are there?
(Ontology)
(2) What kinds of things do people talk as if there are?
(Language Ontology)
Emmon Bach, 1989
(3) What kinds of things do agents behave as if there are?
(Commonsense Ontology)
Thank you
Matthias Nickles
Adam Pease
Andrea Christiane Schalley
Dietmar Zaefferer
AND you go further?
(4) What kinds of things linguists talk about are there?
(5) What kinds of things do linguists talk as if there are?