With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Albus Dumbledore works at fictional library.
text_B: Petra Krug -LRB- born 9 November 1963 in Dresden -RRB- is a retired East German hurdler .. Dresden. Dresden. East German. East Germany. hurdler. 400 metres hurdles. She represented the sports clubs SC Einheit Dresden and SC Dynamo Berlin , and became East German champion in 1989 .. Dresden. Dresden. East German. East Germany. SC Einheit Dresden. SC Einheit Dresden. SC Dynamo Berlin. SC Dynamo Berlin. Krug finished fifth at the 1983 World Championships in Helsinki .. 1983 World Championships. 1983 World Championships in Athletics - Women's 400 metres hurdles. In 1989 , Krug won the European Cup in Gateshead , defeating Sally Gunnell and Tatyana Ledovskaya .. European Cup. European Cup in Athletics. Sally Gunnell. Sally Gunnell. Tatyana Ledovskaya. Tatyana Ledovskaya. At the World Cup later that year in Barcelona , she finished fourth behind Sandra Farmer-Patrick , Ledovskaya and Gunnell .. World Cup. IAAF World Cup. Sandra Farmer-Patrick. Sandra Farmer-Patrick. She reached the final at the 1990 European Championships in Split , but was forced to withdraw because of injury .. 1990 European Championships. 1990 European Championships in Athletics. Her personal best time was 54.35 seconds , achieved in July 1989 in Bryansk .. Bryansk. Bryansk. This ranks her ninth among German 400 m hurdlers , behind Sabine Busch , Cornelia Ullrich , Ellen Fiedler , Heike Meissner , Gudrun Abt , Silvia Rieger , Susanne Losch and Karin Rossley .. Sabine Busch. Sabine Busch. Cornelia Ullrich. Cornelia Ullrich. Ellen Fiedler. Ellen Fiedler. Heike Meissner. Heike Meissner. Gudrun Abt. Gudrun Abt. Silvia Rieger. Silvia Rieger. Susanne Losch. Susanne Losch. Karin Rossley. Karin Rossley
not_related.