With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tropic Thunder was written by Ben Stiller.
text_B: Kim Hyeon-Woo -LRB- Hangul  : 김현우 , -LSB- kim.ɦjʌn.u -RSB- ; born November 6 , 1988 in Wonju , Gangwon-do -RRB- is a male wrestler from South Korea .. Wonju. Wonju. Gangwon-do. Gangwon Province ( South Korea ). Hangul. Hangul. South Korea. South Korea. In the 2012 Summer Olympics , Kim won the gold medal in the 66 kg Greco-Roman wrestling final .. Greco-Roman wrestling. Greco-Roman wrestling. 66 kg. Wrestling at the 2012 Summer Olympics – Men's Greco-Roman 66 kg. 2012 Summer Olympics. 2012 Summer Olympics
not_related.