With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Peter Cetera was a vocalist and bassist for Chicago.
text_B: Phytoecia armeniaca is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Phytoecia. Phytoecia. beetle. beetle. It was described by Frivaldsky in 1878 .
not_related.