A man is singing with a microphone on the sidewalk
The man is siging on the sidewalk.
singing with a microphone is inferred as  siging.
exists e1 x1 x2 x3.(n_sidewalk(x3) & with(e1,x2) & on(x2,x3) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))
exists e1 x1 x2.(n_sidewalk(x2) & n_man(x1) & on(e1,x2) & Actor(e1,x1) & v_sige(e1))