A mom, dad and baby smiling in a park.
A family is in a park.
A mom, dad and baby constitutes a family.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & rel(x1,x2) & subset_of(x4,x2) & in(e1,x6) & n_park(x6) & Actor(e1,x5) & v_smile(e1) & (x4 = x5) & n_baby(x4) & subset_of(x3,x2) & n_dad(x3) & n_mom(x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_park(x2)) & n_family(x1))