With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Buddy Holly's style was affected by country music.
text_B: The Muay competition at the 2009 Asian Martial Arts Games took place from 2 August to 7 August at the Nimibutr Indoor Stadium .. Muay. Muay Thai. 2009 Asian Martial Arts Games. 2009 Asian Martial Arts Games. Nimibutr Indoor Stadium. Nimibutr Indoor Stadium. There were seven women 's events in original program but light welterweight event was cancelled due to lack of entries .
not_related.