<form action="/persons?age=13&nick=babo" method="post">
  <input type="text" name="name" value="Acme" />
  <input type="text" name="person[phone]" value="12345" />
  <input type="text" name="person[address][postcode]" value="54321" />
  <input type="text" name="person[address][city]" value="Seoul" />
  <input type="submit">
</form>