[
   {
      "type":"argo",
      "name":[600, 302, 301, 334 ]
   },
   {
      "type":"drifting_buoy",
      "name":[120, 132, 101, 134 ]
   },
   {
      "type":"fixed_platform",
      "name":[220, 182, 191, 234 ]
   }    
]