Eddie, Avril, and James are playing a card game. James draws a card and then tells Eddie the suit of the card (spades, diamonds, hearts, or clubs), and tells Avril the number on the card ($$1-10$$, $${J}$$, $${Q}$$, or $${K}$$). James also tells them that the card is one of the following:  Spades: $${A}$$, $${J}$$, $${K}$$;  Hearts: $$3$$, $$5$$, $${K}$$;  Diamonds: $$2$$, $$7$$, $${J}$$;  Clubs: $${A}$$, $$7$$;  Eddie says to Avril: ``I still do not know the card. Neither do you.''  Avril says: ``I did not know before you told me this. But now I know for sure! ''  Eddie says: ``Well, now you told me that, I know as well.''  What is the card? 
Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning->Reasoning using Hypothesis