overpass - outputting areas derived from is_in

General talk
1

Consider the following overpass query:

node["name"="Linz Hauptbahnhof"]["railway"="station"];
is_in;
(._; >;);
out;

It does not produce any printable output. It only returns s with metadata, for instance:

  <area id="3607338687">
    <tag k="admin_level" v="10"/>
    <tag k="boundary" v="administrative"/>
    <tag k="description" v="Statistischer Bezirk (ab 2014)"/>
    <tag k="name" v="Innere Stadt"/>
    <tag k="type" v="boundary"/>
    <tag k="url" v="http://www.linzwiki.at/wiki/Statistischer_Bezirk/"/>
  </area>

I learned, that if I substract 3600000000 from the areas id, I get the id from the belonging relation. So

relation(7338687);
(._; >;);
out;

would produce the desired output.

Is there a possibility, to do this conversion from to within an overpass query?

Greetings
cul-de-sac