party leader from to
party
leader
from
to
number parsed year month
number parsed year month
text text date date
scottish national party gordon wallace may 1974 may 1978
which party has had the most leaders ?
WDT NN VBD-AUX VBD-AUX DT RBS NNS .
Labour
select c1 from w group by c1 order by count ( c2 ) desc limit 1