Women riding bike on boardwalk.
The woman is riding alone.
multiple women are not a singular woman
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_boardwalk(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bike(x3) & (x1 = x2) & n_woman(x1))
exists e1 s1 x1.(n_woman(x1) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x1) & v_ride(e1))