select t1.candidate
from (select count(Winner_loser_indic) as win, candidate from election where Winner_loser_indic ='W' group by candidate) t1
inner join (select count(Winner_loser_indic) as lose, candidate from election where Winner_loser_indic ='L' group by candidate) t2
on t1.candidate = t2.candidate
where t1.win = t2.lose