There are two men with sunglasses, one of which is wearing a hat and a backpack.
Two hikers without sunglasses meet on a trail.
The two men have sunglasses.
exists p1 x1 e1 x2 x3 x4 x5 x6 x7 x8.(Theme(e1,x6) & Actor(e1,x5) & v_wear(e1) & subset_of(x8,x6) & n_backpack(x8) & subset_of(x7,x6) & n_hat(x7) & of(x5,x4) & n_one(x5) & (x1 = x2) & (x2 = x4) & with(x2,x3) & n_sunglass(x3) & n_man(x2) & card_eq_2(x2))
exists e1 x1 x2.(on(e1,x2) & n_trail(x2) & Actor(e1,x1) & v_meet(e1) & -exists x3.(with(x1,x3) & n_sunglass(x3)) & n_hiker(x1) & card_eq_2(x1))