data: () => ({
page:  {
   language: "",
   background: "",
   content: {
      title: "",
      age: {
         male: ["......."],
         female: ["...."]
      }
   }
   ...and more complex
}

data: () => ({
    page: new Page();
})

class Page() {
   language, background, content properties...
}
class Content() {
    title, age properties...
}
class Age() {
    male, female properties...
}