A store is open at nighttime.
A store is open for a special event.
You can not infer it is special.
exists s1 x1 x2.(at(s1,x2) & n_nighttime(x2) & Theme(s1,x1) & a_open(s1) & n_store(x1))
exists s1 s2 x1 x2.(for(s1,x2) & n_event(x2) & a_special(s2) & Theme(s2,x2) & Theme(s1,x1) & a_open(s1) & n_store(x1))