With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Katharine Hepburn acts.
text_B: Meng Fanlong -LRB- born 5 February 1988 in Inner Mongolia -RRB- is a Chinese amateur boxer who fought at the 2012 London Olympics as a light-heavyweight .. Inner Mongolia. Inner Mongolia. He is a southpaw .. southpaw. southpaw stance. At the 2010 Asian Games -LRB- results -RRB- he beat two opponents before being outclassed 1 :12 by Elshod Rasulov .. Elshod Rasulov. Elshod Rasulov. At the Asian Championships he lost the final to Kim Hyeong-kyu -LRB- KOR -RRB- 13 :15 .. At the 2011 World Amateur Boxing Championships he beat three opponents before losing to Adilbek Niyazymbetov .. 2011 World Amateur Boxing Championships. 2011 World Amateur Boxing Championships – Light heavyweight#Bottom half. Adilbek Niyazymbetov. Adilbek Niyazymbetov. At the Olympics he defeated Ahmed Barki 17 :8 but lost to Yamaguchi Falcao Florentino 17 :17 , countback .. At the Olympics. Boxing at the 2012 Summer Olympics – Men's light heavyweight#Top half. Ahmed Barki. Ahmed Barki. Yamaguchi Falcao Florentino. Yamaguchi Falcao Florentino
not_related.