Task: Question Answering
Input (English): Muamer Hukić, best known as Marco Huck, is a German professional boxer known for his aggressive style and punching power, he is the second longest reigning cruiserweight world champion of all time, having held the WBO title from 2009 to 2015, making thirteen consecutive successful defenses, which is a division record shared with which British former professional boxer who competed from 1986 to 2005?
Output (English): Johnny Nelson