A man with a guitar and a microphone stands on stage.
A child is playing the drums on a stage.
A man can't be a child.
exists e1 x1 x2 x3 x4 x5.(on(e1,x5) & n_stage(x5) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & subset_of(x4,x2) & n_microphone(x4) & subset_of(x3,x2) & n_guitar(x3) & n_man(x1))
exists e1 x1 x2 x3.(n_drum(x2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & on(x2,x3) & n_stage(x3) & n_child(x1))