Asia has the highest number of child workers, but Sub-Saharan Africa has the highest proportion of working children relative to population.
No area of the world uses more child workers than Asia, not even Sub-Saharan Africa.
My statement is just a rephrasing of the original statement's quote "Asia has the highest number of child workers."
( z1 and :op ( z2 use :ARG0 ( z3 area :polarity - :part-of ( z4 world ) ) :ARG1 ( z5 person :ARG0-of ( z6 work :ARG1 ( z7 child ) ) :ARG1-of ( z8 have-quant :ARG3 ( z9 more ) :ARG4 ( z10 continent :name ( z11 name :op "Asia" ) ) ) ) ) )