A man driving a custom made firetruck.
a guy is driving a firetruck home
Just because a man is driving a firetruck doesn't mean he is driving it home.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_drive(e2) & n_firetruck(x3) & Theme(e1,x3) & v_make(e1) & of(x3,x4) & n_custom(x4) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_home(x2) & of(x2,x3) & n_firetruck(x3) & n_guy(x1))