A father and son looking at a funny looking Santa.
A two people looking at a funny looking Santa.
Just because a father and a son are looking at a Santa doesn't mean two other people are looking at him as well.
exists e1 s1 x1 x2 x3 x4 x5.(at(e1,x4) & on(x4,x5) & ne_tim_santa(x5) & n_look(x4) & a_funny(s1) & Theme(s1,x4) & Actor(e1,x1) & v_look(e1) & n_son(x3) & n_father(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 s1 x1 x2 x3.(at(e1,x2) & on(x2,x3) & ne_tim_santa(x3) & n_look(x2) & a_funny(s1) & Theme(s1,x2) & Actor(e1,x1) & v_look(e1) & n_people(x1) & card_eq_2(x1))