blank nodes (once again)

	I guess I'm close to become an annoyance, but I'm going to ask
	yet another blank node question anyway.

	Suppose that I have the following graph:

:joe :has [ a :dog ]

	And suppose that I also have the following one as well:

:joe :has [ a :dog ]

	From the previous discussion I've learned that there're
	different opinions on whether to consider these graphs, which
	share exactly the same representation, same or different.  In
	particular, there's a position that these graphs are different,
	unless they're named the same.  (Somehow, I feel that graph
	naming should be considered tangential to the knowledge it
	represents, but I've noted to myself that there's a different
	opinion.)

	But my question is itself tangential to the equivalence of these
	graphs.  Instead, I wonder, if I've assimilated this above
	representation into an RDF store, and going to assimilate its
	exact twin again, does this later assimilation change the
	/knowledge/ contained within such a store, or not?

	To speak it differently, I've never heard of Joe, and
	(unexpectedly) received a bit of information that speaks: Joe
	has a dog.  Now, I receive another bit, that says exactly the
	same.

	I'm quite certain that after I've received the first bit I now
	have a bit more knowledge about the World.  However, I'm not so
	sure that the second bit gives me any more knowledge, since I
	still have no rational means to tell, whether the dog I'm told
	of this time is the same or different to the one about which
	I've already known.

	TIA.

-- 
FSF associate member #7257