With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A central venous catheter is used with a central venous line.
text_B: The women 's 200 metre breaststroke event at the 2014 Asian Games took place on 22 September 2014 at Munhak Park Tae-hwan Aquatics Center .. Munhak Park Tae-hwan Aquatics Center. Munhak Park Tae-hwan Aquatics Center. 2014 Asian Games. 2014 Asian Games
not_related.