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 ....
As this seems to be a little slow I'll say that the Words on the Card are the indefinite article plus one other, and that the answer is exceedingly commonplace.