There are two coast guard men patrolling the water in their craft.
The men patrol looking for the missing girl in their craft.
The two coast guard men are not necessarily looking for a missing girl while they're out patrolling.
exists p1 x1 x6 x7.(n_craft(x7) & of(x7,x6) & n_thing(x6) & n_water(x6) & exists e1 x2 x3 x4 x5.((x1 = x2) & Theme(e1,x6) & Actor(e1,x5) & v_patrol(e1) & in(x6,x7) & (x2 = x5) & n_man(x2) & of(x2,x4) & n_guard(x4) & of(x2,x3) & n_coast(x3) & card_eq_2(x2)))
exists e1 p1 s1 x1 x2 x3.(n_craft(x3) & of(x3,x2) & n_thing(x2) & n_girl(x2) & a_missing(s1) & Theme(s1,x2) & n_man(x1) & exists e2.(for(e2,x2) & in(x2,x3) & Actor(e2,x1) & v_look(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_patrol(e1))