With no explanation, label each line with "O", "location-GPE", "art-film", "event-attack/battle/war/militaryconflict", "product-ship", "art-broadcastprogram", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Submarine
X-1
is
a
1968
DeLuxe
Color
British
World
War
II
war
film
loosely
based
on
the
Operation
``
Source
''
attack
on
the
German
battleship
``
Tirpitz
``
in
1943
.
Submarine:art-film
X-1:art-film
is:O
a:O
1968:O
DeLuxe:O
Color:O
British:location-GPE
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
war:O
film:O
loosely:O
based:O
on:O
the:O
Operation:O
``:O
Source:O
'':O
attack:O
on:O
the:O
German:location-GPE
battleship:O
``:O
Tirpitz:product-ship
``:O
in:O
1943:O
.:O