Cheerleaders practice a routine while a few people look on.
cheerleaders sit cause a player is down.
You can not sit down while you practice a routine.
(x)
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_cause(e2) & Theme(s1,x4) & a_down(s1) & (x3 = x4) & n_player(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_cheerleader(x1))