An athlete performs the high jump.
The athlete is running a marathon.
An athlete cannot be running a marathon and performs the high jump the same time.
exists e1 s1 x1 x2.(n_jump(x2) & a_high(s1) & Theme(s1,x2) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_athlete(x1))
exists e1 x1 x2.(n_athlete(x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_marathon(x2))