Black people climbing up to a roof.
Black people climbing a fence.
You cannot climb a roof and fence at the same time.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & to(e1,x4) & n_roof(x4) & a_up(s1) & Manner(e1,s1) & Actor(e1,x3) & v_climb(e1) & (x1 = x3) & n_people(x1) & (x1 = x2) & ne_nam_black(x2))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & n_fence(x4) & (x1 = x3) & n_people(x1) & (x1 = x2) & ne_nam_black(x2))