Yes, it's another round of that classic guessing game - Animal, Vegetable, Mineral, Abstract [or any combination thereof]. This effort - '03/'04 should address any queries, but then again, may just serve to confuse and baffle which some might say is the point of the game. Patience, integrity and a decent search engine may be useful ....
[KagomeShuko] It does tend to get a bit blurry if you look at it too closely. I think we'd all agree coal and plastic are mineral, for example. [But if someone does pipe up to disagree, that shows it's even closer than I'd thought.]