With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Venus Williams plays singles in table tennis.
text_B: Medhat al-Mahmoud -LRB- born September 21 , 1933 -RRB- is the head of the Iraqi Supreme Judicial Council and is the 1st and current Chief Justice of Iraq .. Chief Justice of Iraq. Supreme Court of Iraq. Iraq. Iraq. He has served in this capacity since 2005 .
not_related.