Yellow barriers are lined up and men are walking on both sides of them.
The barriers are orange
They barriers can't be yellow if they are orange.
exists e1 e2 s1 s2 x1 x2 x3.(n_side(x3) & on(e2,x3) & of(x3,x1) & n_thing(x1) & Actor(e2,x2) & v_walk(e2) & n_man(x2) & a_up(s2) & Manner(e1,s2) & Theme(e1,x1) & v_line(e1) & n_barrier(x1) & a_yellow(s1) & Theme(s1,x1))
exists p1 x1.(n_barrier(x1) & exists x2.((x1 = x2) & n_orange(x2)))