A family reading together.
A family is having a BBQ.
Cant read and have a BBQ at the same time
exists s1 x1 x2.(Theme(s1,x1) & a_together(s1) & n_read(x1) & of(x1,x2) & n_family(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & ne_org_bbq(x2) & n_family(x1))