With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Usain Bolt is Jamaican.
text_B: Walter Fernando Perez -LRB- born January 31 , 1975 in San Justo -RRB- is an Olympic gold medal-winning racing cyclist from Argentina .. San Justo. San Justo, Buenos Aires. Argentina. Argentina. racing cyclist. racing cyclist. Perez , who joined the Argentine cycling team in 1992 , won the Cycling World Championships in 2004 and Men 's Madison gold medal at the 2008 Summer Olympics with teammate Juan Curuchet .. Madison. Cycling at the 2007 Pan American Games. World Championships. UCI Track Cycling World Championships. Cycling World Championships. Cycling World Championships. 2008 Summer Olympics. 2008 Summer Olympics. Juan Curuchet. Juan Curuchet. Walter also won two gold medals at the Pan American Games -LRB- 2003 in Santo Domingo and 2007 in Rio de Janeiro -RRB- .. Pan American Games. Pan American Games. Walter carried the flag for his country at the opening ceremony of the 2011 Pan American Games in Guadalajara , Mexico and 2015 Pan American Games in Toronto , Canada .. Pan American Games. Pan American Games. 2011 Pan American Games. 2011 Pan American Games. 2015 Pan American Games. 2015 Pan American Games. Toronto. Toronto. Canada. Canada. In 2008 , he received the Gold Olimpia Award as the best athlete of the year from his country with Juan Curuchet .. Juan Curuchet. Juan Curuchet. Gold Olimpia Award. Olimpia Award
not_related.