[
 (decl_specifiers) {
  (scoped_type) {
   (namespace_resolve) {
    (instantiated_template_type) {
     std
     (template_instantiation_arguments) {
      <
      (decl_specifiers) {
       (builtintype) {
        int
       }
      }
      >
     }
    }
    ::
   }
   vector
  }
 }
]