Several girls are playing a sport.
Severals girls are watching others playing a sport
Playing a sport is different than watching others play.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sport(x2) & n_girl(x1) & a_several(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3 x4 x5.(Theme(e2,x3) & Actor(e2,x1) & v_watch(e2) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & n_sport(x5) & (x3 = x4) & -(x3 = x1) & n_person(x1) & n_person(x3) & n_girl(x1) & of(x1,x2) & n_several(x2))