"Child labor" is, generally speaking, work for children that harms them or exploits them in some way (physically, mentally, morally, or by blocking access to education).
Child labor can prevent children from getting a proper education.
( z1 possible :ARG1 ( z2 prevent :ARG0 ( z3 labor :ARG0 ( z4 child ) ) :ARG1 ( z5 get :ARG0 z4 :ARG1 ( z6 educate :ARG1 z4 :mod ( z7 proper ) ) ) ) )