Two musicians on stage in front of a microphone stand.
the man stands on stage alone with no microhphone
The man cannot stand on stage alone if there are two musicians on stage also.
exists x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & in(x2,x3) & of(x3,x4) & n_stand(x4) & of(x4,x5) & n_microphone(x5) & n_front(x3) & n_stage(x2) & n_musician(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_man(x1) & -exists x3.(on(e1,x2) & with(x2,x3) & n_microhphone(x3)) & r_alone(x2) & n_stage(x2) & Actor(e1,x1) & v_stand(e1))