Three girls run in a field outside.
Walking down the street to school, the three girls sang and laughed.
Walking is not the same as if they run.
exists e1 x1 x2 x3.(in(e1,x2) & n_outside(x2) & of(x2,x3) & n_field(x3) & Theme(e1,x1) & v_run(e1) & n_girl(x1) & card_eq_3(x1))
exists e3 e1 e2 x1 x2 x3 x4.(n_girl(x4) & card_eq_3(x4) & n_street(x2) & while(e3,e1) & Actor(e3,x4) & v_laugh(e3) & while(e2,e1) & Actor(e2,x4) & v_sing(e2) & to(e1,x3) & n_school(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_thing(x1))