With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Harlem is where Sean Combs was born.
text_B: Harpalus demelti is a species of ground beetle in the subfamily Harpalinae .. ground beetle. ground beetle. Harpalinae. Harpalinae. It was described by Korge in 1962 .
not_related.