[supercat]

Is it? That's a very interesting distinction you draw parenthetically - what, precisely, is the difference between a "real" right and a "perceived" right?

The right to own human slaves, for example?

[general_re]

That may be an example, but denotative definitions of this sort are generally pretty limited, insofar as we cannot possibly enumerate all possible examples of "perceived" rights. Hence, we cannot fully identify the extension of the term "perceived right".

So I want to know how we differentiate a real right from one that is only perceived to be a right. Imagine that we are presented with a claim of a new right, one that has never been encountered before. When looking at this claimed right, how do we know whether it is "real" or not? Surely there must be some standard we can apply...