| & 
Purpose 
How these semantic concerns relate to the purposes of 
the present study can be illustrated by an example. The 
extension of ‘Things that I own' includes my car. When I 
affirm that it is true that I own my car, I must use 
semantic intensional knowledge about the verb 'to own’, 
There are a great many features or attributes describing 
personal relationships to the car, some of which are 
plausible criteria for ownership. For example, I paid for 
it and possess its keys. I need it, use it, and take care 
of it. It's registered in my name and parked in my 
backyard. When I affirm ownership, I may be using some 
rule-of-thumb, such as the territorial heruistic mentioned 
earlier, or I might be referring to my possession of the 
keys or the registration. It is possible that I use some 
weighted combination of these ownership criteria. However, 
in circumstances of disputed claims to the car, affirmation 
that I own the car would probably be based on more formal 
exact intensional processing, possibly involving legal 
advice, The concept of ownership could be said to entail 
those criteria that apply most regularly in each of the 
semantic modes. There would be degrees of entailment, with 
some criteria being more weighted than others. 
Thus, in semantic terms, the goal of the present study 
was to examine the semantic intension of ownership, using a