A young man in a blue shirt eats a hotdog.
A person in an operating room.
A person in an operating room would not be eating a hotdog.
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_eat(e1) & n_hotdog(x3) & in(x1,x2) & n_shirt(x2) & a_blue(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_room(x2) & of(x2,x3) & n_operating(x3) & n_person(x1))