People stroll outdoors at the airport.
There are people are outdoors
People are outdoors.
exists e1 x1 x2 x3.(n_airport(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_stroll(e1) & n_outdoors(x2) & n_people(x1))
exists p1 p2 x1 x2.(exists x4.((x1 = x4) & n_outdoors(x4)) & exists x3.((x2 = x3) & n_people(x3)) & (x1 = x2))