text: /*
  Given the CITY and COUNTRY tables, query the names of all cities where the CONTINENT is 'Africa'.
  
  Note: CITY.CountryCode and COUNTRY.Code are matching key columns.
  */
  
  SELECT i.name from CITY as i INNER JOIN COUNTRY as o
  ON (i.COUNTRYCODE = o.CODE) where o.CONTINENT = 'Africa'
  