Bidding: : (W) 1NT - 3NT - Pass     Lead : 4♥

Trick 11		North Q♣
Declarer (W) ♠ - - - - ♥ - - 7 ♦ - - ♣ - - 5 -	K♣		7♣	Dummy (E) ♠ Q 6 - ♥ - - ♦ - - - - - - ♣ - -
		10 ♣ South		Won = 10 Lost = 1

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Unfortunately NS discarded wisely, still holding the J♣, K♠ and Q♥,
therefore Declarer is bound to lose the remaining two tricks.