With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Heinrich Himmler oversaw the Gestapo.
text_B: The Betfair European Tour 2012 / 2013 -- Event 1 -LRB- also known as the 2012 Arcaden Paul Hunter Classic -RRB- was a professional minor-ranking snooker tournament that took place between 23 -- 26 August 2012 in Furth , Germany .. Betfair. Betfair. Furth. Furth. Germany. Germany. ranking. Snooker world rankings. European Tour 2012 / 2013. Players Tour Championship 2012 / 2013. Paul Hunter Classic. Paul Hunter Classic. snooker. snooker. Ken Doherty made the 90th official maximum break during his last 128 match against Julian Treiber .. Ken Doherty. Ken Doherty. maximum break. maximum break. Julian Treiber. Julian Treiber. This was Doherty 's first official 147 break and also the second maximum break in the 2012 / 2013 season .. Maximum break. maximum break. maximum break. 2012 / 2013 season. Snooker season 2012 / 2013. Doherty also became the first player from Ireland to make an official maximum break .. maximum break. maximum break. Mark Selby successfully defended his 2011 title by beating Joe Swail 4 -- 1 in the final .. Mark Selby. Mark Selby. Joe Swail. Joe Swail. Swail became the first player not on the Main Tour to reach the final of a PTC event , having been relegated the previous season .. Main Tour. World Snooker Tour#Main Tour. PTC. Players Tour Championship
not_related.