data = [
{category: "country", sub_category: "USA"},
{category: "country", sub_category: "Canada"},
{category: "country", sub_category: "Mexico"},
{category: "age_group", sub_category: "1–10"},
{category: "age_group", sub_category: "11–30"},
{category: "age_group", sub_category: "31–60"},
]