With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Science
fiction
author
M.
John
Harrison
was
unimpressed
by
the
book
,
declaring
it
``
almost
unreadable
''
.
Science:O
fiction:O
author:O
M.:person-artist/author
John:person-artist/author
Harrison:person-artist/author
was:O
unimpressed:O
by:O
the:O
book:O
,:O
declaring:O
it:O
``:O
almost:O
unreadable:O
'':O
.:O