so let's say john is example.com/john and sally is example.com/sally
what do we use for "knows"?
well, there are multiple senses of the word "knows":
1) is aware of the existence of
2) is familiar with
3) is having sexual intercourse with
we mean definition 1. so we might use example.com/vocab/knows/1
now we have the statement:
<example.com/john> <example.com/vocab/knows/1> <example.com/sally>
this is unambiguous, but we can go one step further: we can provide definitions at the uri
15/?
say some random person sees the statement above. they don't know who john or sally are, and they don't know what "knows" means in this context.
well, if we do a little work upfront, they actually *can* know what all of these terms mean, **without ever asking us directly**
we put a resource on example.com for each of these terms, and each resource describes the subject of that identifier -- it is a "resource descriptor".
the resource for knows/1 can define itself explicitly with a schema
16/?