With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Corey Taylor joined Slipknot in 1997 to replace their original vocalist, Anders Colsefni.
text_B: The Illustrated Guide to Extended Massive Orgasm is a 2002 sex manual by Steve Bodansky and Vera Bodansky .. Orgasm. Orgasm. sex manual. sex manual. The book illustrates different stimulation techniques to increase pleasure during sexual intercourse .
not_related.