With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Garry Kasparov is a person.
text_B: Germany participated in the 2010 Summer Youth Olympics in Singapore .. Singapore. Singapore. 2010 Summer Youth Olympics. 2010 Summer Youth Olympics. The German squad consisted of 70 athletes competing in 20 sports  : aquatics -LRB- swimming -RRB- , archery , athletics , badminton , basketball , boxing , canoeing , fencing , gymnastics , judo , modern pentathlon , rowing , sailing , shooting , table tennis , taekwondo , tennis , triathlon , weightlifting and wrestling .
not_related.