A lady is giving a presentation to an all-female class.
The all-female class is listening to a presentation.
if a lady is giving a presentation then somebody is listening to it
exists e1 s1 x1 x2 x3.(to(e1,x3) & n_class(x3) & a_all-female(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_give(e1) & n_presentation(x2) & n_lady(x1))
exists e1 s1 x1 x2.(n_class(x1) & a_all-female(s1) & Theme(s1,x1) & to(e1,x2) & n_presentation(x2) & Actor(e1,x1) & v_listen(e1))