A singer on a stage is singing into a microphone.
The person singing is using a mic.
A singer is singing into a microphone, so the person is using the mic
exists e1 x1 x2 x3.(into(e1,x3) & n_microphone(x3) & Actor(e1,x1) & v_sing(e1) & on(x1,x2) & n_stage(x2) & n_singer(x1))
exists e1 x1 x2 x3.(n_person(x1) & Theme(e1,x3) & Actor(e1,x1) & v_use(e1) & n_mic(x3) & Time(x1,x2) & n_singing(x2))