newbie question about sparql and 200

If I say, in SPARQL:

select * from <http://example.com/graph1> { ... }

then by my reading of the SPARQL rec (http://www.w3.org/TR/rdf-sparql-query/ 
), http://example.com/graph1 is supposed to name a (named) graph. But  
some SPARQL servers take the URI in a FROM or GRAPH clause and use it  
with HTTP to fetch an RDF/XML or Turtle document, from which triples  
are obtained. By the httpRange-14 resolution, the 200 response means  
that the URI names an information resource.

Therefore, at least some RDF graphs (or named graphs) are information  
resources, right?

I'm sure this has been discussed before...

Jonathan