Two bikers ride through a camping area.
They are outside
A camping area is found outdoors, so the bikers are outside.
exists e1 x1 x2 x3.(through(e1,x2) & n_area(x2) & of(x2,x3) & n_camping(x3) & Actor(e1,x1) & v_ride(e1) & n_biker(x1) & card_eq_2(x1))
exists s1 x1.(n_thing(x1) & Theme(s1,x1) & a_outside(s1))