With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Doctor Who is not produced in Britain.
text_B: Brachyglene bracteola is a moth of the family Notodontidae .. Notodontidae. Notodontidae. Brachyglene. Brachyglene. moth. moth. It is found from. Venezuela east to Ceara , Brazil , and south at least as far as Rio de Janeiro .. Venezuela. Venezuela. Brazil. Brazil. Rio de Janeiro. Rio de Janeiro. Females show extensive wing-pattern variation .
not_related.