A girl drinking a pop.
The girl is sleeping on the sofa.
A girl cannot be drinking a pop and sleeping on the sofa simultaneously.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_drink(e1) & n_pop(x3) & (x1 = x2) & n_girl(x1))
exists e1 x1 x2.(n_sofa(x2) & n_girl(x1) & on(e1,x2) & Actor(e1,x1) & v_sleep(e1))