4 men are having a serious discussion at a desk.
The men are racing on the dirt race track.
The men cannot be having a serious discussion at a desk while they are racing on a dirt race track
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & at(x2,x3) & n_desk(x3) & n_discussion(x2) & a_serious(s1) & Theme(s1,x2) & n_man(x1) & n_date(x1) & a_date_day_04(x1) & a_date_day_04(x1))
exists e1 x1 x2 x3 x4.(n_track(x2) & of(x2,x4) & n_race(x4) & of(x2,x3) & n_dirt(x3) & n_man(x1) & on(e1,x2) & Actor(e1,x1) & v_race(e1))