People are walking down the street and a child is sitting on the curb.
People are running past a crying child.
walking and running are different actions, sitting and crying are different actions
exists e2 e1 x1 x2 x3 x4.(n_curb(x4) & n_street(x2) & on(e2,x4) & Actor(e2,x3) & v_sit(e2) & n_child(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 s1 x1 x2.(past(e1,x2) & n_child(x2) & a_crying(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_people(x1))