With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tyne Daly didn't perform in Mothers and Sons.
text_B: Nadine Visser -LRB- born 9 February 1995 in Hoorn -RRB- is a Dutch athlete .. Hoorn. Hoorn. Dutch. Netherlands. athlete. Sport of athletics. She won bronze medals in both heptathlon and the 100 m hurdles at the 2014 World Junior Championships , and bronze in the 100 m hurdles at the 2015 European U23 Championships .. 100 m hurdles. 100 m hurdles. European U23 Championships. European Athletics U23 Championships. World Junior Championships. IAAF World Junior Championships in Athletics. heptathlon. heptathlon. 2014 World Junior Championships. 2014 World Junior Championships in Athletics. 2015 European U23 Championships. 2015 European Athletics U23 Championships
not_related.