A window cleaner is repelling down a building.
A window cleaner is wearing a red uniform.
Not all window cleaners wear red uniforms.
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_repel(e1) & n_building(x3) & n_cleaner(x1) & of(x1,x2) & n_window(x2))
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_uniform(x3) & a_red(s1) & Theme(s1,x3) & n_cleaner(x1) & of(x1,x2) & n_window(x2))