An instructor is teaching his students how to escape a hold in a self-defense class.
the instructor is a woman
It is not known if the instructor is a man or woman.
exists e1 p1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_teach(e1) & Topic(x2,p1) & exists e2 s1 x3 x4.(Theme(e2,x3) & Actor(e2,x2) & v_escape(e2) & in(x3,x4) & n_class(x4) & a_self-defense(s1) & Theme(s1,x4) & n_hold(x3)) & n_student(x2) & of(x2,x1) & n_male(x1) & n_instructor(x1))
exists p1 x1.(n_instructor(x1) & exists x2.((x1 = x2) & n_woman(x2)))