A person in the water getting ready to waterski on their feet.
A person is outdoors.
A person is outdoors, and getting ready to waterski can only take place outdoors.
exists e1 p1 x1 x2 x3 x4.(n_foot(x4) & of(x4,x2) & n_thing(x2) & n_water(x2) & a_topic(x1) & in(x1,x2) & exists p2 s1.(Topic(s1,p2) & Actor(s1,x3) & a_ready(s1) & exists e2.(on(e2,x4) & Actor(e2,x3) & v_waterski(e2))) & Topic(e1,p1) & Actor(e1,x3) & v_get(e1) & (x2 = x3) & n_person(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_outdoors(x2)) & n_person(x1))