Database: car_1_minus_1_0
Question: What are the names of all European countries with at least 3 manufacturers?
SQL: select t1.countryname from countries_continents as t1 join car_makers as t2 on t1.countryid = t2.country where t1.continent_continents = 'europe' group by t1.countryname having count ( * ) >= 3 ;