A person walks in the dark near streetlights.
A lady walks in the sunshine.
One cannot be in the dark and in the sunshine simultaneously.
exists e1 x1 x2 x3.(n_dark(x2) & in(e1,x2) & near(x2,x3) & n_streetlight(x3) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists e1 x1 x2.(n_sunshine(x2) & in(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_lady(x1))