With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Oz the Great and Powerful had a general theatrical release in 2013.
text_B: Group B of the 2007 Fed Cup Europe / Africa Zone Group I was one of four pools in the Europe / Africa Zone Group I of the 2007 Fed Cup .. pools. Pool ( sport ). 2007 Fed Cup. 2007 Fed Cup. Four teams competed in a round robin competition , with the top team and the bottom team proceeding to their respective sections of the play-offs  : the top team played for advancement to the World Group II Play-offs , while the bottom team faced potential relegation to Group II .. play-offs. 2007 Fed Cup Europe / Africa Zone Group I – Play-offs. World Group II Play-offs. 2007 Fed Cup World Group II Play-offs. Group II. 2008 Fed Cup Europe / Africa Zone#Group II
not_related.