A person prays at a shrine.
A Pastor preaches a sermon.
One either prays or preaches.
exists e1 x1 x2.(at(e1,x2) & n_shrine(x2) & Actor(e1,x1) & v_pray(e1) & n_person(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_preach(e1) & n_sermon(x2) & ne_org_pastor(x1))