With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Howard Stern developed his on show from 1976 to 1982.
text_B: The 2012 -- 13 Women 's FIH Hockey World League Round 2 was held from February to March 2013 .. FIH Hockey World League. FIH Hockey World League. A total of 22 teams competed in 4 events were part in this round of the tournament playing for 8 berths in the Semifinals , played in June 2013 .. Semifinals. 2012–13 Women's FIH Hockey World League Semifinals
not_related.