>>> $c->sites
=> Illuminate\Database\Eloquent\Collection {#784
     all: [
       App\Sites {#810
         id: 1,
         name: "Foo",
         created_at: "2018-02-14 09:53:27",
         updated_at: "2018-02-14 09:53:27",
         pivot: Illuminate\Database\Eloquent\Relations\Pivot {#822
           clients_id: 1,
           sites_id: 1,
         },
       },
     ],
   }