A man, woman, and child enjoying themselves on a beach.
A family of three is at the beach.
man, woman and child are three people who are related so they are family of three.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_group(x6) & a_topic(s1) & subset_of(x4,s1) & on(e1,x7) & n_beach(x7) & Theme(e1,x6) & Actor(e1,x5) & v_enjoy(e1) & (x4 = x5) & n_child(x4) & subset_of(x1,s1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists p1 x1 x2 x3.(n_beach(x3) & at(x1,x3) & of(x1,x2) & n_thing(x2) & card_eq_3(x2) & n_family(x1))