With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Hangover Part III includes Dave Chapelle.
text_B: The 2012 -- 13 Coppa Italia Lega Pro is the 41st edition of the competition that involving teams from Lega Pro in Italian football .. Coppa Italia Lega Pro. Coppa Italia Lega Pro. Lega Pro. Lega Pro. Italian football. Italian football. This year only 69 clubs will take part in the tournament instead of the 77 of the previous year .
not_related.