With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Purple is in the rock genre and released by Stone Temple Pilots.
text_B: Jonathan Sebastian `` Jonny '' Double is a fictional character in the DC Comics universe .. DC Comics. DC Comics. fictional character. fictional character. Created by Len Wein and Marv Wolfman , he first appeared in Showcase # 78 -LRB- November 1968 -RRB- .. 1968 in comics. Len Wein. Len Wein. Marv Wolfman. Marv Wolfman. Showcase. Showcase ( comics )
not_related.