With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Purple Haze was written by Eric Clapton.
text_B: Altagonum paralimbus is a species of ground beetle in the subfamily Carabinae .. ground beetle. ground beetle. Carabinae. Carabinae. It was described by Darlington in 1952 .
not_related.