A cold cycler celebrates.
The hot, sweaty biker is depressed.
A biker can either celebrate or be depressed but not both.
exists s1 x1 x2.(a_topic(x1) & n_celebrate(x1) & of(x1,x2) & n_cycler(x2) & a_cold(s1) & Theme(s1,x1))
exists e1 s1 s2 s3 x1.(n_biker(x1) & a_sweaty(s3) & Theme(s3,x1) & a_,(s2) & Theme(s2,x1) & a_hot(s1) & Theme(s1,x1) & Theme(e1,x1) & v_depress(e1))