A man playing the accordion and a man play a cello.
Two people go to lunch.
Playing an instrument and going to lunch are not the same.
exists e1 x1 x2 x3 x4.(n_accordion(x4) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & all x5.(n_cello(x5) -> exists x6 x7.(subset_of(x6,x3) & for(x6,x5) & n_play(x6) & of(x6,x7) & n_man(x7))) & subset_of(x4,x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(to(e1,x2) & n_lunch(x2) & Actor(e1,x1) & v_go(e1) & n_people(x1) & card_eq_2(x1))