A man is singing into a microphone.
The man is singing.
A microphone is for singing.
exists e1 x1 x2.(into(e1,x2) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_sing(e1))