A cold cycler celebrates.
The biker parties.
The biker or cycler celebrates by parting.
exists s1 x1 x2.(a_topic(x1) & n_celebrate(x1) & of(x1,x2) & n_cycler(x2) & a_cold(s1) & Theme(s1,x1))
exists x1 x2.(n_party(x1) & of(x1,x2) & n_biker(x2) & a_topic(x1))