Three men are working on a roof.
the men are up above the ground.
A roof is above the ground
exists e1 x1 x2.(on(e1,x2) & n_roof(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_3(x1))
exists s1 x1 x2.(n_ground(x2) & n_man(x1) & above(s1,x2) & Theme(s1,x1) & a_up(s1))