With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Leukemia is type of cancer.
text_B: The 2012 -- 13 Danish 2nd Divisions in the game of football will be divided in two groups of sixteen teams .. football. Association football. The two group winners will be promoted to the 2013 -- 14 Danish 1st Division .. Because of an uneven distribution of West and East-teams -LRB- divided by the Great Belt -RRB- , one East-team , BK Søllerød-Vedbæk , was drawn into the West-division .. Great Belt. Great Belt. BK Søllerød-Vedbæk. BK Søllerød-Vedbæk
not_related.