Grandmother and her granddaughter opening presents at Christmas time.
It's Easter
It's either Christmas or Easter
exists e1 s1 x1 x2 x3 x4 x5 x6.(ne_nam_grandmother(x1) & a_topic(s1) & subset_of(x3,s1) & at(e1,x5) & n_time(x5) & (x5 = x6) & ne_tim_christmas(x6) & Theme(e1,x2) & Actor(e1,x4) & v_open(e1) & n_present(x2) & (x3 = x4) & n_granddaughter(x3) & of(x3,x2) & n_female(x2) & subset_of(x1,s1))
exists p1 x1 x2.(ne_nam_easter(x2) & n_thing(x1) & (x1 = x2))