With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Year Zero is by a blacksmith.
text_B: William McCutchan Morrison -LRB- 1867 -- 1918 -RRB- was an American Presbyterian missionary best known for his involvement with a campaign for reform in the Congo .. Congo. Belgian Congo. He was born on November 10 , 1867 , near Lexington , Virginia , and graduated in 1887 from Washington and Lee University .. Washington and Lee University. Washington and Lee University
not_related.