A woman does her shopping at the local Walmart
A woman at walmart.
There is a woman in both.   Walmart is mention in both as well.
exists e1 s1 x1 x2 x3.(ne_org_walmart(x3) & a_local(s1) & Theme(s1,x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_shopping(x2) & of(x2,x1) & n_female(x1) & n_woman(x1))
exists x1 x2.(a_topic(x1) & at(x1,x2) & n_walmart(x2) & n_woman(x1))