A boy wearing green shorts is about to serve a volleyball.
A boy is playing ball with other students.
While there are several players in every volleyball game, they do not have to be other students in order to play.
exists e1 p1 s1 s2 x1 x2 x3.(Topic(s2,p1) & Actor(s2,x1) & a_about(s2) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_serve(e2) & n_volleyball(x4)) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shorts(x3) & a_green(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_student(x4) & with(e1,x3) & -(x3 = x4) & n_student(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_ball(x2) & n_boy(x1))