Convert result of query (table of objects) into table of arrays or simply remove symbols { and }

Please i have this result :

[
     {
        "Bill": [
          {
            "age": "12"
          }
        ]
      },
      {
        "gaston": [
          {
            "size": "20"
          }
        ]
      },
      {
        "simon": [
          {
            "money": "3000"
          }
        ]
      }
]
I want to process it to obtain this:

[
        "Bill": [
          {
            "age": "12"
          }
        ],
        "gaston": [
          {
            "size": "20"
          }
        ],
        "simon": [
          {
            "money": "3000"
          }
        ]
]

The expected results are not valid JOSN. ARRAY has filed, value. It must be object.