Several people walking past a food cart on a city street.
People are purchasing items from food carts.
Just because people walking past a food cart doesn't mean they are purchasing items from food carts.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & past(e1,x3) & on(x3,x5) & n_street(x5) & of(x5,x6) & n_city(x6) & n_cart(x3) & of(x3,x4) & n_food(x4) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(from(e1,x3) & n_cart(x3) & of(x3,x4) & n_food(x4) & Theme(e1,x2) & Actor(e1,x1) & v_purchase(e1) & n_item(x2) & n_people(x1))