A couple with sunglasses are laying on the beach.
The people are outside.
a couple are laying on the beach simply means they are  outside
exists e1 x1 x2 x3.(n_beach(x3) & on(e1,x3) & Actor(e1,x1) & v_lay(e1) & with(x1,x2) & n_sunglass(x2) & n_couple(x1))
exists s1 x1.(n_people(x1) & Theme(s1,x1) & a_outside(s1))