a bicyclist wearing a helmet jumping a trick on his back tire
the person is a woman
Just because the bicyclist wearing a helmet doesn't mean it's a woman.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & on(e1,x6) & n_tire(x6) & of(x6,x7) & n_back(x7) & of(x6,x1) & n_male(x1) & Theme(e1,x5) & Actor(e1,x4) & v_jump(e1) & n_trick(x5) & (x3 = x4) & n_helmet(x3) & (x1 = x2) & n_bicyclist(x1))
exists p1 x1.(n_person(x1) & exists x2.((x1 = x2) & n_woman(x2)))