With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mark Millar has worked on Comic Books.
text_B: Kasama Airport is an airport serving Kasama , Northern Province , Zambia .. Kasama. Kasama, Zambia. Northern Province. Northern Province, Zambia. Zambia. Zambia. The Kasama non-directional beacon -LRB- ident  : KS -RRB- is located at the eastern edge of the field .. Kasama. Kasama, Zambia. non-directional beacon. non-directional beacon
not_related.