A city block is sealed off by the police.
The police are blocking the street.
block is sealed off represents blocking
exists e1 s1 x1 x2 x3.(n_police(x3) & Actor(e1,x3) & a_off(s1) & Manner(e1,s1) & Theme(e1,x1) & v_seal(e1) & n_block(x1) & of(x1,x2) & n_city(x2))
exists e1 x1 x2.(n_street(x2) & n_police(x1) & Theme(e1,x2) & Actor(e1,x1) & v_block(e1))