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Opa- (4),Opaa (3),Opab (2),Opac (30),Opad (6),Opae (3),Opaf (1),Opag (3),Opah (4),Opai (3),Opaj (3),Opak (16),Opal (99),Opam (3),Opan (34),Opao (6),Opap (5),Opar (62),Opas (15),Opat (99),Opau (2),Opav (6),Opaw (5),Opay (2),Opač (5),Opař (1)

Name	What	Region	Country	Lat	Long	Elev ft.	Pop est
Opa	city	Pernambuco	Brazil	-7.85	-37.62	2611	2225
Opa	city	Plateaux	Congo	-2.48	14.83	2509	149
Opa	city	Greater Accra	Ghana	5.72	-0.32	206	115057
Opa	city	Ondo	Nigeria	7.03	5.17	830	7152
Opa	city	Oyo	Nigeria	7.60	3.89	915	14436
Opa	city	Gulf	Papua New Guinea	-7.88	145.45	114	290
Opa	city	Arua	Uganda	2.71	31.09	3349	6800
Opa	city	Arua	Uganda	2.69	31.00	3349	7548