A man in a suit giving a presentation on a large projector screen.
The guy is talking with his friend at the cafe.
man cannot be giving a presentation and be  talking with his friend at the same time.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x2) & on(e1,x5) & n_screen(x5) & of(x5,x6) & n_projector(x6) & a_large(s1) & Theme(s1,x5) & Theme(e1,x4) & Actor(e1,x3) & v_give(e1) & n_presentation(x4) & (x2 = x3) & n_suit(x2) & n_man(x1))
exists e1 x1 x2 x3.(n_cafe(x3) & n_friend(x2) & of(x2,x1) & n_male(x1) & n_guy(x1) & at(e1,x3) & with(e1,x2) & Actor(e1,x1) & v_talk(e1))