With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gold is ductile.
text_B: The Nasty Boys , sometimes referred to incorrectly as the Nasty Boyz , are a fictional group of supervillain mutants appearing in American comic books published by Marvel Comics .. Marvel Comics. Marvel Comics. supervillain. supervillain. mutants. Mutant ( Marvel Comics ). This group exists in Marvel 's shared universe , known as the Marvel Universe .. shared universe. shared universe. Marvel Universe. Marvel Universe. They are the personal strike force of X-Men and X-Factor nemesis Mister Sinister .. Mister Sinister. Mister Sinister. X-Men. X-Men. X-Factor. X-Factor ( comics ). The Nasty Boys can be distinguished from the Marauders , who were a group of mercenaries brought together by Mister Sinister to specifically kill the Morlocks .. Mister Sinister. Mister Sinister. Marauders. Marauders ( comics ). Morlocks. Morlocks ( comics )
not_related.