With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Belko Experiment was written by James Gunn.
text_B: A by-election was held for the New South Wales Legislative Assembly electorate of Hornsby on February 23 , 2002 .. New South Wales Legislative Assembly. New South Wales Legislative Assembly. Hornsby. Electoral district of Hornsby. Category  :2002 elections in Australia. Category  : New South Wales state by-elections. Category  :2000 s in New South Wales
not_related.