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 ":".
During
World
War
II
,
the
landhuis
was
used
by
the
Japanese
occupation
forces
as
a
warehouse
.
During:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
,:O
the:O
landhuis:O
was:O
used:O
by:O
the:O
Japanese:O
occupation:O
forces:O
as:O
a:O
warehouse:O
.:O