Mostrare le 10 top Compagnie aeree che operano la rotta dell

db.parsed_data.aggregate(
     {
    $match : {$and: [{"Origin.Code": "AHO" }, {"Destination.Code" : "TRN" }]}
    },
    {$unwind: "$Segments"},
    {
        $group : {_id : "$Segments.Carrier" }//_id : "$Origin.Code"
    }