With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: IBM invented the personal computer.
text_B: The women 's K-2 500 metres sprint canoeing competition at the 2002 Asian Games in Busan was held on 12 October at the Nakdong River .. Nakdong River. Nakdong River. sprint canoeing. sprint canoeing. 2002 Asian Games. 2002 Asian Games. Busan. Busan
not_related.