A young man with a guitar is standing in front of a microphone.
A man is putting on a concert to a crowd.
You can not infer he is putting on a concert.
exists e1 s1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_microphone(x4) & n_front(x3) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & n_guitar(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(on(e1,x3) & to(x3,x4) & n_crowd(x4) & n_concert(x3) & Theme(e1,x2) & Actor(e1,x1) & v_put(e1) & n_thing(x2) & n_man(x1))