With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ronald Reagan did not come after Dwight D. Eisenhower.
text_B: The 2010 Emir of Qatar Cup is the 38th edition of the is a cup tournament in men 's football -LRB- soccer -RRB- .. It is played by the 1st and 2nd Level divisions of the Qatari football league structure .. The top four sides of the 2009 -- 10 Qatar Stars League season enter at the Quarter-final stage .. 2009 Emir of Qatar Cup. Al-Gharrafa are the defending champions .. Al-Gharrafa. Al-Gharrafa. The cup winner were guaranteed a place in the 2011 AFC Champions League .. 2011 Emir of Qatar Cup. 2011 AFC Champions League. 2011 AFC Champions League
not_related.