A man stands by a wall playing a saxophone.
A man is standing by a wall playing a saxophone for a crowd
Just because a man is playing a saxophone does not mean he is playing a saxophone for a crowd.
exists e1 e2 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & n_saxophone(x3) & by(e1,x2) & n_wall(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & for(x3,x4) & n_crowd(x4) & n_saxophone(x3) & by(e1,x2) & n_wall(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))