With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Philip V of Spain was a member of a chess club.
text_B: Chilanga is located 20 km south of Zambia 's capital city , Lusaka .. Zambia. Zambia. Lusaka. Lusaka. 15 ° 34 ' 0 S. 28 ° 16 ' 60 E
not_related.