"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" is, generally speaking, work for children that harms them or exploits them in some way. Many adults are exploited too 
( z1 or :op ( z2 work :ARG2 ( z3 child :ARG0-of ( z4 harm :ARG1 z3 ) ) ) :op ( z5 exploit :ARG1 z3 :manner ( z6 way :mod ( z7 some ) ) ) :domain ( z8 labor :ARG1 z3 ) :ARG1-of ( z9 speak :ARG1-of ( z10 general ) ) )