Women form half the population and 54% of the voters in the country, yet are very poorly represented in parliament.
Roughly one out of every two people is a woman.
The paragraph states that half the population is women.  I said that roughly one of out of every two people is a woman.  This is effectively the same thing, so my statement is correct.  The system likely does not understand the nuances of language to understand that what I said follows from what is said in the paragraph. It also might not understand how to do division to determine that one divided by two is 50%.
( z1 woman :ARG1-of ( z2 include :ARG2 ( z3 person :quant 2 :mod ( z4 every ) ) :ARG3 ( z5 roughly :op "1/1" ) ) )