A man in a light-purple shirt passes by a Celtic pub.
A man in a purple shirt passes by the Celtic pub he used to own.
The fact that a man passes by a Celtic pub doesn't imply that he used to own the Celtic pub.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & by(x1,x4) & n_pub(x4) & (x4 = x5) & ne_org_celtic(x5) & in(x1,x2) & n_pass(x2) & of(x2,x3) & n_shirt(x3) & a_light-purple(s1) & Theme(s1,x2) & n_man(x1))
exists e1 p1 s1 x1 x2 x3 x4 x5.(n_male(x4) & n_pub(x4) & (x4 = x5) & ne_geo_celtic(x5) & a_topic(x1) & by(x1,x4) & Topic(e1,p1) & Actor(e1,x4) & v_use(e1) & exists e2 x6.(Theme(e2,x6) & Actor(e2,x4) & v_own(e2) & (x4 = x6)) & in(x1,x2) & n_pass(x2) & of(x2,x3) & n_shirt(x3) & a_purple(s1) & Theme(s1,x2) & n_man(x1))