The couple eat their meal outside.
The couple is underwater
Outside is not underwater
exists e1 s1 x1 x2.(n_outside(x2) & a_meal(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & n_couple(x1) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1))
exists s1 x1.(n_couple(x1) & Theme(s1,x1) & a_underwater(s1))