With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Huntington's disease is caused by inheritance.
text_B: Aitor `` Txiki '' Begiristain Mujika -LRB- born 12 August 1964 -RRB- is a retired Spanish footballer and director of football at Premier League football club Manchester City .. footballer. Association football. director of football. director of football. Premier League. Premier League. football club. soccer. Manchester City. Manchester City F.C.. As a player , he is best known for his spells at Real Sociedad and Barcelona , winning eight major titles with the latter , including four La Liga championships and the 1992 European Cup .. Real Sociedad. Real Sociedad. Barcelona. FC Barcelona. La Liga. La Liga. 1992 European Cup. 1992 European Cup Final. Begiristain represented the Spain national team in one World Cup and one European Championship .. Spain. Spain national football team. Spain national team. Spain national football team. World Cup. FIFA World Cup. European Championship. UEFA European Football Championship. After retiring , he worked as a director of football .. director of football. director of football
not_related.