With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nerrukku Ner is 1997 Tamil dramatic film.
text_B: The 1977 -- 78 Segunda Division season saw 20 teams participate in the second flight Spanish league .. Segunda Division. Segunda Division. Real Zaragoza , Recreativo de Huelva and Celta de Vigo were promoted to Primera Division .. Real Zaragoza. Real Zaragoza. Recreativo de Huelva. Recreativo de Huelva. Celta de Vigo. Celta de Vigo. Primera Division. La Liga. Real Oviedo , Cordoba CF , CD Tenerife and CF Calvo Sotelo were relegated to Segunda Division B.. Real Oviedo. Real Oviedo. Cordoba CF. Cordoba CF. CD Tenerife. CD Tenerife. CF Calvo Sotelo. UD Puertollano. Segunda Division B. Segunda Division B. Segunda Division. Segunda Division. From this season , immediately below Segunda Division there is a new league Segunda Division B. Thus , Tercera Division became the fourth level in the Spanish football pyramid .. Segunda Division B. Segunda Division B. Segunda Division. Segunda Division. Tercera Division. Tercera Division
not_related.