Women form half the population and 54% of the voters in the country, yet are very poorly represented in parliament.
Women are not represented in parliament.
From the context we know women are very poorly represented in parliament, which means they are represented, just poorly.  Therefore the statement is definitely incorrect.
( z1 represent :polarity - :ARG0 ( z2 woman ) :ARG1 ( z3 government-organization :name ( z4 name :op "Parliament" ) ) )