A black car passes a Walgreens.
a car passing a store headed home
A car that passes a Walgreens does not have to be  headed home.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_pass(e1) & ne_org_walgreens(x2) & n_car(x1) & a_black(s1) & Theme(s1,x1))
exists e2 e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_pass(e2) & Time(e1,x5) & n_home(x5) & Theme(e1,x4) & v_head(e1) & (x3 = x4) & n_store(x3) & (x1 = x2) & n_car(x1))