A woman is riding a bicycle on the pavement.
man riding a mountain bike off trail
The person must either be a woman or a man
exists e1 x1 x2 x3.(n_pavement(x3) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & n_woman(x1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & off(e1,x5) & n_trail(x5) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & of(x3,x4) & n_mountain(x4) & (x1 = x2) & n_man(x1))