The person is doing a handstand on the beach.
A person running along the beach.
One cannot do a handstand and be running at the same time.
exists e1 x1 x2 x3.(n_beach(x3) & n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_handstand(x2))
exists e1 x1 x2 x3.(n_beach(x3) & a_topic(x1) & along(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_person(x1))