[
{
"items": [
{ "id": "a1", "name": "Alpha" },
{ "id": "a2", "name": "Beta" }
],
"first_id": "a1",
"second_name": "Beta",
"flag0": true,
"flag0_default": true,
"third_id_default": "none",
"first_item_name": "Alpha",
"matrix_value": 20
},
{
"items": [
{ "id": "b1", "name": "Gamma" }
],
"first_id": "b1",
"flag0_default": false,
"third_id_default": "none",
"first_item_name": "Gamma",
"matrix_value": 20
}
]