With no explanation, label each line with "art-music", "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
addition
,
the
Crosby
,
Stills
and
Nash
song
``
Do
It
for
the
Others
``
lets
the
audience
know
what
the
time
period
and
setting
probably
are
.
In:O
addition:O
,:O
the:O
Crosby:person-artist/author
,:O
Stills:person-artist/author
and:O
Nash:person-artist/author
song:O
``:O
Do:art-music
It:art-music
for:art-music
the:art-music
Others:art-music
``:O
lets:O
the:O
audience:O
know:O
what:O
the:O
time:O
period:O
and:O
setting:O
probably:O
are:O
.:O