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db.collection.aggregate([{"$unwind":"$lists"},{$match:{$or:[{"lists.cards":[]},{"lists.cards":{$elemMatch:{"archived":false}}}]}},{"$group":{"_id":"_id","lists":{"$addToSet":"$lists"},"name":{"$first":"$name"},"lables":{"$first":"$labels"},"color":{"$first":"$color"},}}])