A person cleans up a mess in front of a stage.
the person is asleep
Being asleep and cleaning up cannot be done simultaneously.
exists e1 s1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_stage(x4) & n_front(x3) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_mess(x2) & n_person(x1))
exists s1 x1.(n_person(x1) & Theme(s1,x1) & a_asleep(s1))