A man in a plaid shirt is smoking a cigarette on a city street.
A man is smoking
The fact that a man in a plaid shirt is smoking a cigarette on a city street does not imply that a man is smoking.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_smoke(e1) & on(x3,x4) & n_street(x4) & of(x4,x5) & n_city(x5) & n_cigarette(x3) & in(x1,x2) & n_shirt(x2) & a_plaid(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_smoke(e1) & n_man(x1))