A motorcyclist biking through dusty terrain.
The rider is outside.
I a motorcyclist is in a dusty terrain, he must be outside.
exists e1 s1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_terrain(x3) & a_dusty(s1) & Theme(s1,x3) & Actor(e1,x2) & v_bike(e1) & (x1 = x2) & n_motorcyclist(x1))
exists s1 x1.(n_rider(x1) & Theme(s1,x1) & a_outside(s1))