With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Wyatt Earp worked to do anything except to extract minerals from an orebody.
text_B: The Irish Premier League in season 2005 -- 06 comprised 16 teams , and Linfield won the championship .. Linfield. Linfield F.C.. Irish Premier League. IFA Premiership
not_related.