{
  from: "air_airlines",
  let: { maybe_name: "$airlines" },
  pipeline: [
    {
      $match: {
        $expr: {
          $gt: [
            {
              $size: {
                $setIntersection: [
                  "$$maybe_name",
                  ["$name", "$alias", "$iata", "$icao"]
                ]
              }
            },
            0
          ]
        }
      }
    },
    {
      $project: {
        _id: 0,
        name_is: "$name",
        ref_name: {
          $arrayElemAt: [
            {
              $filter: {
                input: "$$maybe_name",
                cond: {
                  $in: ["$$this", ["$name", "$alias", "$iata", "$icao"]]
                }
              }
            },
            0
          ]
        }
      }
    }
  ],
  as: "found"
}