The bulk update request #9227 is pending approval.
create implication playing_uno (0) -> card_game (559)
create implication playing_uno (0) -> uno_card (24)
create implication uno_card (24) -> uno (146)
create implication uno_card (24) -> card (4729)
Reason: If a game is identifiable as Uno, it must by definition be played with Uno cards, which makes it a card game.
An Uno card doesn't fit under the umbrella of the playing_card tag (these are what you'd use in poker), but it is still a card regardless.
UPDATE: corrected the use of the existing copyright tag, added playing_uno tag to indicate an active game of Uno.
Updated