Three musicians in a recording studio.
A fiddler by a fire.
There are three musicians, not a one person playing a fiddle and if they are in a recording studio then they are not by a fire.
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_studio(x2) & of(x2,x3) & n_recording(x3) & n_musician(x1) & card_eq_3(x1))
exists x1 x2.(a_topic(x1) & by(x1,x2) & n_fire(x2) & n_fiddler(x1))