With no explanation, label each line with "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
opened
in
1907
and
was
largely
destroyed
in
1945
in
the
closing
days
of
World
War
II
,
though
a
small
wing
continued
operating
until
1984
.
It:O
opened:O
in:O
1907:O
and:O
was:O
largely:O
destroyed:O
in:O
1945:O
in:O
the:O
closing:O
days:O
of:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
,:O
though:O
a:O
small:O
wing:O
continued:O
operating:O
until:O
1984:O
.:O