With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stanley Kubrick's birthdate was in the 1920s.
text_B: This article shows the rosters of all participating teams at the women 's baseball tournament at the 2015 Pan American Games in Toronto .. 2015 Pan American Games. 2015 Pan American Games. Toronto. Toronto. Rosters can have a maximum of 18 athletes .
not_related.