With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: José Aldo had been ranked #1 in UFC in the year 2015.
text_B: Siegfried is a heavy metal band from Austria that was founded in 1998 by Bruder Cle , aka Hagen , who was later joined by Daniel Bachmaier -LRB- ex Sarcasm Syndrome -RRB- , a.k.a. Ortwin , and former Dreams of Sanity singer Sandra Schleret .. heavy metal. heavy metal music. Austria. Austria. Dreams of Sanity. Dreams of Sanity. In 2000 they released a demo CD called Fafnir .. Later in 2000 they were signed to Napalm Records , releasing their first album , Drachenherz , in 2001 .. Their second album , Eisenwinter , was released in 2003 .. The lyrics of Siegfried are based on and inspired by the Nibelung Saga .. Nibelung. Nibelung. According to Sandra Schleret as of April 25 , 2008 , `` Siegfried is still together and working on a new album -LRB- pre-production is finished except the vocals for two songs . -RRB- ''. In May 2009 Siegfried recorded their third album , Nibelung , in Alex Krull 's well-known Mastersound studios .. Nibelung. Nibelung. Nibelung was released in November 2009 .. Nibelung. Nibelung
not_related.