A group of people are enjoying a birthday celebration, with two cakes.
A family is celebrating twin boys' tenth birthday.
The group is not necessarily a family. Two cakes does not imply twin boys or that it's their tenth birthday.
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_enjoy(e1) & with(x3,x5) & n_cake(x5) & card_eq_2(x5) & n_celebration(x3) & of(x3,x4) & n_birthday(x4) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_celebrate(e1) & n_birthday(x3) & of(x3,x4) & n_tenth(x4) & of(x3,x2) & n_boy(x2) & a_twin(s1) & Theme(s1,x2) & n_family(x1))