A cashier at a grocery store.
The grocery store has someone working the register.
someone working the register is another way of saying cashier.
exists x1 x2 x3.(a_topic(x1) & at(x1,x2) & n_store(x2) & of(x2,x3) & n_grocery(x3) & n_cashier(x1))
exists e2 e1 x1 x2 x3 x4 x5.(n_register(x5) & n_store(x1) & of(x1,x2) & n_grocery(x2) & Theme(e2,x3) & Actor(e2,x1) & v_have(e2) & Theme(e1,x5) & Actor(e1,x4) & v_work(e1) & (x3 = x4) & n_person(x3))