With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Aix-Marseille-Provence Metropolis encompasses Aubagne.
text_B: Vano Sarajishvili -LRB- 1878 -- 1924 -RRB- was a Georgian singer of the Opera Theatre , Georgian People 's Artist of the USSR -LRB- for contribution to native culture -RRB- , and one of the founders of Georgian professional vocal music .. His lyrical and dramatic songs were beloved by Georgian people and one such , `` Georgian Nightingale , '' became a legend in his lifetime .. Always in demand , Vano was a frequent guest on the stages of both European and Russian Theatres .. It is said that the theatre societies of Petrograd and Moscow were as impressed by him as by Chaliapin or Leonid Sobinov .. Chaliapin. Chaliapin. Leonid Sobinov. Leonid Sobinov
not_related.