I'm enjoying my new toy for Christmas.
I didn't get any gifts this Christmas.
Someone can't get a new toy for Christmas and then have no gift.
exists e1 s1 x1 x2 x3.(ne_tim_christmas(x3) & n_toy(x2) & a_new(s1) & Theme(s1,x2) & of(x2,x1) & n_person(x1) & n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & for(x2,x3))
exists x1 x3.(ne_tim_christmas(x3) & n_person(x1) & -all x2.(n_gift(x2) -> exists e1.(Time(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_get(e1))))