Which country had the highest value of indicator belongs to Private Sector & Trade: Exports topic? Please list the country name and indicator name.
country refers to CountryName;
SELECT T1.CountryName, T1.IndicatorName FROM Indicators AS T1 INNER JOIN Series AS T2 ON T1.IndicatorName = T2.IndicatorName WHERE T2.Topic = 'Private Sector & Trade: Exports' ORDER BY T1.Value DESC LIMIT 1