Its black or white. They cant work in an area of gray. How are they different? Our conversation has been lightly edited. AdvertisementA: Actually, the opposite is true.
They labor in an area of black.
( z0 labor :ARG0 ( z1 they ) :location ( z2 area :cxnsistof ( z3 person :ARG1-of ( z4 black ) ) ) )
(z0 / labor-01
    :ARG0 (z1 / they)
    :location (z2 / area
                  :consist-of (z3 / person
                                  :ARG1-of (z4 / black-05))))
They labor in an area of black .
z0 :ARG0 z1
z0 :location z2
z2 :consist-of z3
z3 :ARG1-of z4