Black people talking in the marketplace.
The people are communicating.
Black people are people, talking is a rephrasing of communicating.
exists e1 x1 x2 x3 x4.(n_marketplace(x4) & a_topic(x1) & in(e1,x4) & Actor(e1,x3) & v_talk(e1) & (x1 = x3) & n_people(x1) & (x1 = x2) & ne_nam_black(x2))
exists e1 x1.(n_people(x1) & Actor(e1,x1) & v_communicate(e1))