List of Berlin U-Bahn stations
S

Station
Line
Opened
Situation
Samariterstraße
U5
21 December 1930
underground
Scharnweberstraße
U6
31 May 1958
embankment
Schillingstraße
U5
21 December 1930
underground
Schlesisches Tor
U1
18 February 1902
elevated
Schloßstraße
U9
30 September 1974
underground
Schönhauser Allee
U2
27 July 1913
elevated
Schönleinstraße
U8
17 July 1927
underground
Schwartzkopffstraße
U6
8 March 1923
underground
Seestraße
U6
8 March 1923
underground
Senefelderplatz
U2
27 July 1913
underground
Siemensdamm
U7
1 October 1980
underground
Sophie-Charlotte-Platz
U2
29 March 1908
underground
Spichernstraße
U3
2 June 1959
underground
Spichernstraße
U9
28 August 1961
underground
Spittelmarkt
U2
1 October 1908
underground
Stadtmitte
U2
1 October 1908
underground
Stadtmitte
U6
30 January 1923
underground
Strausberger Platz
U5
21 December 1930
underground
Südstern
U7
14 December 1924
underground

Question: What line is the Stadtmitte located?
Answer: Stadtmitte is a Berlin U-Bahn station located on the U2 and the U6.