With no explanation, label each line with "organization-media/newspaper", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Roger
Ebert
of
``
Chicago
Sun-Times
``
gave
the
film
3
1/2
stars
out
of
four
,
praising
Brett
Ratner
's
directing
and
the
film
's
atmosphere
.
Roger:person-other
Ebert:person-other
of:O
``:O
Chicago:organization-media/newspaper
Sun-Times:organization-media/newspaper
``:O
gave:O
the:O
film:O
3:O
1/2:O
stars:O
out:O
of:O
four:O
,:O
praising:O
Brett:person-other
Ratner:person-other
's:O
directing:O
and:O
the:O
film:O
's:O
atmosphere:O
.:O