Crowds walk along the street.
The crowds are leaving from their workdays.
The fact that the crowds walk along the street doesn't imply that they are leaving from their workdays or any other reason they may walk along the street.
exists e1 x1 x2.(n_street(x2) & along(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_crowd(x1))
exists e1 x1 x2.(n_workday(x2) & of(x2,x1) & n_thing(x1) & n_crowd(x1) & from(e1,x2) & Actor(e1,x1) & v_leave(e1))