A man demonstrates how to ride a bicycle with only the back wheel on the ground.
A man is riding a golf cart down the street.
One cannot ride a bicycle and a golf cart simultaneously.
exists e1 s1 x1 x2 x3 x7.(n_ground(x3) & n_wheel(x7) & a_back(s1) & Theme(s1,x7) & on(e1,x3) & Topic(e1,x2) & Actor(e1,x1) & v_demonstrate(e1) & n_manner(x2) & exists e2 x4 x5 x6.(all x8.(with(e2,x8) -> (x6 = x8)) & (x6 = x7) & with(e2,x7) & Theme(e2,x5) & Actor(e2,x4) & v_ride(e2) & n_bicycle(x5)) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_street(x4) & down(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_cart(x2) & of(x2,x3) & n_golf(x3) & n_man(x1))