A person with face paint is staring at something from within a crowd.
The person is crowd surfing.
A person within a crowd cannot be crowd surfing.
exists e1 x1 x2 x3 x4 x5 x6.(at(e1,x4) & within(x5,x6) & n_crowd(x6) & from(x4,x5) & n_thing(x5) & n_thing(x4) & Actor(e1,x1) & v_stare(e1) & with(x1,x2) & n_paint(x2) & of(x2,x3) & n_face(x3) & n_person(x1))
exists p1 x1.(n_person(x1) & exists x2 x3.((x1 = x2) & n_surfing(x2) & of(x2,x3) & n_crowd(x3)))