Several adults and children ridding a silver roller coaster.
The adult and children belong to the same family.
Just because several adults and children ridding a silver roller coaster does not mean that they belong to the same family.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(s1) & Theme(e1,x4) & Actor(e1,x3) & v_rid(e1) & n_coaster(x4) & of(x4,x6) & n_roller(x6) & of(x4,x5) & n_silver(x5) & (s1 = x3) & n_child(x2) & n_adult(x1) & subset_of(x2,s1) & subset_of(x1,s1) & a_several(s2) & Theme(s2,s1))
exists e1 s1 x1 x2 x3 x4.(n_family(x4) & a_same(s1) & Theme(s1,x4) & n_child(x3) & n_adult(x2) & subset_of(x3,x1) & subset_of(x2,x1) & to(e1,x4) & Actor(e1,x1) & v_belong(e1))