a motorcyclist riding covered head to toe with mud
The biker is covered with mud.
a biker is another way to say motorcyclist
exists e1 p1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_cover(e1) & Topic(x3,p1) & exists e2 x4.(with(e2,x4) & n_mud(x4) & Actor(e2,x3) & v_toe(e2)) & n_head(x3) & n_riding(x1) & of(x1,x2) & n_motorcyclist(x2))
exists e1 x1 x2.(n_biker(x1) & with(e1,x2) & n_mud(x2) & Theme(e1,x1) & v_cover(e1))