With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Adolf Hitler led the Nazi party.
text_B: The Clash Hits Back is a 2-CD , 3-LP best of collection by The Clash released in September 2013 .. The Clash. The Clash. The set was released simultaneously with an eleven disc box set titled Sound System along with 5 Album Studio Set , which contains the band 's first five studio albums .. Sound System. Sound System ( album ). 5 Album Studio Set. 5 Album Studio Set. They are expected to be the final releases to involve Mick Jones who said `` I 'm not even thinking about any more Clash releases .. Mick Jones. Mick Jones ( The Clash ). This is it for me , and I say that with an exclamation mark . ''. Jones said .
not_related.