With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Novak Djokovic is only German.
text_B: Gwen Bagni -LRB- January 24 , 1913 -- May 13 , 2001 -RRB- was an American screenwriter .. She worked on Backstairs at the White House and Four Star Playhouse .. Backstairs at the White House. Backstairs at the White House. Four Star Playhouse. Four Star Playhouse. She worked with her first husband actor / writer John Bagni , who died in 1954 .. John Bagni. John Bagni. She also wrote screenplays with her second husband , the actor Paul Dubov -LRB- 1918-1979 -RRB- , whom she married in 1963 .. Paul Dubov. Paul Dubov
not_related.