Some people in a park with a dog and folding chairs.
A family enjoying a picnic in the park.
It is not known if the people are a family. Being in the park does not imply having a picnic.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & with(x2,x3) & subset_of(x5,x3) & n_chair(x5) & a_folding(s1) & Theme(s1,x5) & subset_of(x4,x3) & n_dog(x4) & n_park(x2) & n_people(x1))
exists e1 x1 x2 x3 x4.(n_park(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & in(x3,x4) & n_picnic(x3) & (x1 = x2) & n_family(x1))