A baseball player in a red jersey is about to release a pitch.
The pitcher is throwing a changeup.
Not all baseball players who pitch are throwing a changeup
exists p1 s1 s2 x1 x2 x3.(Topic(s2,p1) & Actor(s2,x1) & a_about(s2) & exists e1 x4.(Theme(e1,x4) & Actor(e1,x1) & v_release(e1) & n_pitch(x4)) & in(x1,x3) & n_jersey(x3) & a_red(s1) & Theme(s1,x3) & n_player(x1) & of(x1,x2) & n_baseball(x2))
exists e1 x1 x2.(n_pitcher(x1) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_changeup(x2))