Database: world_development_indicators
Question: Write down the description and series code of Benin in year 2005.
SQL: SELECT T2.Description, T2.Seriescode FROM Country AS T1 INNER JOIN FootNotes AS T2 ON T1.CountryCode = T2.Countrycode WHERE T1.TableName = 'Benin' AND T2.Year = 'YR2005'