A man plays the trumpet on stage
The trumpet is away in its case.
The man has the trumpet in his hands, therefore cannot be away in its case.
exists e1 x1 x2 x3.(n_trumpet(x2) & on(e1,x3) & n_stage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))
exists s1 x1 x2.(n_case(x2) & of(x2,x1) & n_thing(x1) & n_trumpet(x1) & in(s1,x2) & Theme(s1,x1) & a_away(s1))