A woman is speaking in front of a large screen.
The woman is speaking about a topic she is familiar with.
A person is sometimes not familiar with the things they give talks about.
exists e1 s1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_screen(x3) & a_large(s1) & Theme(s1,x3) & n_front(x2) & Actor(e1,x1) & v_speak(e1) & n_woman(x1))
exists e1 s1 x1 x2 x3.(n_female(x1) & n_woman(x1) & about(e1,x2) & with(s1,x3) & (x2 = x3) & Theme(s1,x1) & a_familiar(s1) & n_topic(x2) & Actor(e1,x1) & v_speak(e1))