Question: What is the official website of the association football club whose headquarter location is Mannheim?
Choices:
https://www.bankofamerica.com/
http://www.ring-themovie.com/
http://www.afl.com.au/
http://www.navy.mil
http://www.petramarklund.se/
http://www.sampdoria.it/
http://www.achtzehn99.de/
http://www.townofchapelhill.org
http://www.svw07.de
http://www.nba.com/cavaliers/