A woman is riding a bike along a beach.
a lady back flips off of a city bus
Riding a bike is not back flips off a bus.
exists e1 x1 x2 x3.(along(e1,x3) & n_beach(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bike(x2) & n_woman(x1))
exists e1 x1 x2 x3.(r_off(e1) & of(e1,x2) & n_bus(x2) & of(x2,x3) & n_city(x3) & Actor(e1,x1) & v_flip(e1) & r_back(x1) & n_lady(x1))