Security lining a street.
Security is getting cotton candy at the carnival.
Security can't line a street if they are getting cotton candy.
exists e1 x1 x2.(ne_nam_security(x1) & Theme(e1,x2) & Actor(e1,x1) & v_line(e1) & n_street(x2))
exists e1 x1 x2 x3 x4.(n_carnival(x4) & ne_nam_security(x1) & at(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_get(e1) & n_candy(x2) & of(x2,x3) & n_cotton(x3))