With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Colin Firth was nominated for an award.
text_B: `` Pure Massacre '' is a single released by rock band Silverchair in 1995 and is the second single from their debut album Frogstomp , which was also released in 1995 .. Silverchair. Silverchair. Frogstomp. Frogstomp. rock. Rock music. The song was performed on Saturday Night Live .. Saturday Night Live. Saturday Night Live
not_related.