A man is standing on a stage, speaking, and there is a phrase projected on a screen behind him.
the man is an emcee
Not all speakers are the emcee.
exists e1 p1 x1 x2 x3 x4.(exists e2 x5 x6 x7.((x4 = x5) & on(e2,x7) & behind(x7,x1) & n_screen(x7) & Theme(e2,x6) & v_project(e2) & (x5 = x6) & n_phrase(x5)) & n_male(x1) & on(e1,x2) & rel(x2,x3) & n_speaking(x3) & n_stage(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_emcee(x2)))