With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cher is a performer.
text_B: European Formula Three can refer to  :. The FIA European Formula Three Championship -LRB- 1975 -- 1984 , 2012 -- present -RRB-. FIA European Formula Three Championship. FIA European Formula Three Championship. The FIA European Formula Three Cup , a one-off race -LRB- 1985 -- 1990 , 1999 -- 2004 -RRB-. FIA European Formula Three Cup. FIA European Formula Three Cup. The Formula 3 Euro Series -LRB- 2003 -- 2012 -RRB-. Formula 3 Euro Series. Formula 3 Euro Series
not_related.