gistfile1.js

{
  "package":
  {"video":
    {"item":
      [ // 2 elements in Array
       {
         "vmap":{...}, 
         "transcript":{...}, 
         "beacon":{...}
       },
       { // is this overlay object relevant?
         "overlay":{...}
       }
      ] 
    }
  }
}