With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Led Zeppelin put out the album Led Zeppelin II in the 20th century.
text_B: Aydın Guven Gurkan -LRB- May 10 , 1941 Elazıg-January 22 , 2006 Istanbul -RRB- was a Turkish academician and politician .. Elazıg. Elazıg. Istanbul. Istanbul. Turkish. Turkey
not_related.