With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Emily Blunt was in a film based on a Lauren Weisberger novel.
text_B: Oxaprotiline -LRB- C 49-802 BDA -RRB- , also known as hydroxymaprotiline , is a norepinephrine reuptake inhibitor of the tetracyclic antidepressant family that is related to maprotiline .. norepinephrine reuptake inhibitor. norepinephrine reuptake inhibitor. tetracyclic antidepressant. tetracyclic antidepressant. maprotiline. maprotiline. antidepressant. antidepressant. Though investigated as an antidepressant , it was never marketed .. antidepressant. antidepressant
not_related.