A man pushing a cart near the subway.
A man is pushing a shopping cart.
Cart doesn't imply shopping cart.
exists e1 x1 x2 x3 x4.(n_subway(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_push(e1) & near(x3,x4) & n_cart(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_push(e1) & n_cart(x2) & of(x2,x3) & n_shopping(x3) & n_man(x1))