With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tetris was designed by Alexey Pajitnov in 1979.
text_B: The 2010 -- 11 UCI Africa Tour was the seventh season of the UCI Africa Tour .. UCI Africa Tour. UCI Africa Tour. Africa. Africa. The season began on 6 October 2010 with the Grand Prix Chantal Biya and ended on 24 July 2011 with the Tour of Eritrea .. Grand Prix Chantal Biya. Grand Prix Chantal Biya. Tour of Eritrea. Tour of Eritrea. The points leader , based on the cumulative results of previous races , wears the UCI Africa Tour cycling jersey .. UCI Africa Tour. UCI Africa Tour. Africa. Africa. cycling jersey. cycling jersey. Abdelatif Saadoune of Morocco was the defending champion of the 2009 -- 10 UCI Africa Tour .. UCI Africa Tour. UCI Africa Tour. Africa. Africa. Abdelatif Saadoune. Abdelatif Saadoune. Adil Jelloul of Morocco was crowned as the 2010 -- 11 UCI Africa Tour champion .. UCI Africa Tour. UCI Africa Tour. Africa. Africa. Adil Jelloul. Adil Jelloul. Throughout the season , points are awarded to the top finishers of stages within stage races and the final general classification standings of each of the stages races and one-day events .. The quality and complexity of a race also determines how many points are awarded to the top finishers , the higher the UCI rating of a race , the more points are awarded .. The UCI ratings from highest to lowest are as follows  :. Multi-day events  : 2 .. HC , 2.1 and 2.2. One-day events  : 1 .. HC , 1.1 and 1.2
not_related.