SELECT winner_name FROM matches WHERE YEAR  =  2013 INTERSECT SELECT winner_name FROM matches WHERE YEAR  =  2016
List the names of all winners who played in both 2013 and 2016.
SELECT winner_name FROM matches WHERE YEAR = 2013 INTERSECT SELECT winner_name FROM matches WHERE YEAR = 2016
select winner_name from matches where year = value intersect select winner_name from matches where year = value
List the names of all winners who played in both 2013 and 2016 .