A group of tourists enjoy a fast flying amusement ride.
The tourists are having dinner.
The tourists could not possibly be having dinner while enjoying a fast flying amusement ride.
exists e2 e1 s1 s2 x1 x2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_enjoy(e2) & n_ride(x3) & a_amusement(s2) & Theme(s2,x3) & Actor(e1,x3) & v_fly(e1) & a_fast(s1) & Theme(s1,x3) & of(x1,x2) & n_tourist(x2) & n_group(x1))
exists e1 x1 x2.(n_tourist(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_dinner(x2))