A family is dining and watching television.
A family is eating dinner.
is dining can be replaced by is eating.
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_watch(e2) & n_television(x4) & n_family(x3) & Theme(e1,x2) & Actor(e1,x1) & v_dine(e1) & n_television(x2) & n_family(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_dinner(x2) & a_eating(s1) & Theme(s1,x2)) & n_family(x1))