Cyclist number forty-eight treks through the mud.
The cyclist doesn't mind riding through mud.
If a biker treks you can say the biker rides
exists x1 x2 x3 x4.(n_mud(x4) & a_topic(x1) & through(x1,x4) & n_trek(x1) & card_eq_48(x1) & of(x1,x3) & n_number(x3) & (x1 = x2) & ne_nam_cyclist(x2))
exists x1.(n_cyclist(x1) & -exists e1 p1.(exists e2 x2.(through(e2,x2) & n_mud(x2) & Actor(e2,x1) & v_ride(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_mind(e1)))