With no explanation, label each line with "product-game", "art-writtenart", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "building-airport" preceded by ":".
The
magazine
also
went
on
to
chronicle
the
production
of
Martin
Walker
's
next
game
,
``
Citadel
``
,
in
a
diary
column
named
``
Walker
's
Way
``
.
The:O
magazine:O
also:O
went:O
on:O
to:O
chronicle:O
the:O
production:O
of:O
Martin:person-other
Walker:person-other
's:O
next:O
game:O
,:O
``:O
Citadel:product-game
``:O
,:O
in:O
a:O
diary:O
column:O
named:O
``:O
Walker:art-writtenart
's:art-writtenart
Way:art-writtenart
``:O
.:O