Two elderly men sitting at the hospital.
Two elderly men are visited by their families at the hospital.
If you are in the hospital it doesn't mean that you're a patient at the hospital nor does it mean that you're being visited by your families
exists e1 s1 x1 x2 x3.(n_hospital(x3) & a_topic(x1) & at(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1) & a_elderly(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_hospital(x3) & at(e1,x3) & Actor(e1,x2) & n_family(x2) & of(x2,x1) & n_thing(x1) & Theme(e1,x1) & v_visit(e1) & n_man(x1) & a_elderly(s1) & Theme(s1,x1) & card_eq_2(x1))