Two men holding their boat on the beach.
Two men on the beach are holding the boat.
"On the beach holding the boat" is a rephrasing of "holding their boat on the beach".
exists e1 x1 x2 x3 x4.(n_beach(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & on(x3,x4) & n_boat(x3) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_boat(x3) & n_beach(x2) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & on(x1,x2) & n_man(x1) & card_eq_2(x1))