Classify each country as "African" or "European": Nigeria, Rwanda, Portugal, Romania, Ghana, Ukraine
Nigeria: African
Rwanda: African
Portugal: European
Romania: European
Ghana: African
Ukraine: European
<START_INST>Classify each country as "African" or "European": Nigeria, Rwanda, Portugal, Romania, Ghana, Ukraine<END_INST><START_CTX><END_CTX><START_A>Nigeria: African
Rwanda: African
Portugal: European
Romania: European
Ghana: African
Ukraine: European<END_A>