Three children are running down a grassy hill.
Three children hike up a big hill.
running  is not the same as  hike
exists e1 s1 x1 x2.(down(e1,x2) & n_hill(x2) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_child(x1) & card_eq_3(x1))
exists e1 s1 s2 x1 x2.(a_up(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_hike(e1) & n_hill(x2) & a_big(s1) & Theme(s1,x2) & n_child(x1) & card_eq_3(x1))