A person is walking while carrying two objects.
The person is carrying things while walking.
Someone carrying things while walking is doing just that.
exists e1 e2 x1 x2.(while(e1,e2) & Theme(e2,x2) & Actor(e2,x1) & v_carry(e2) & n_object(x2) & card_eq_2(x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists e1 e2 x1 x2.(n_person(x1) & while(e1,e2) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_thing(x2))