An African woman makes pots.
A black woman is teaching a friend how to make pottery.
Makes pots does not necessarily mean she is teaching a friend.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_pot(x2) & n_woman(x1) & a_african(s1) & Theme(s1,x1))
exists e1 p1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_teach(e1) & Topic(x2,p1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x2) & v_make(e2) & n_pottery(x3)) & n_friend(x2) & n_woman(x1) & a_black(s1) & Theme(s1,x1))