With no explanation, label each line with "location-GPE", "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
During
the
Second
World
War
,
the
currency
on
the
occupied
Czech
territory
was
artificially
weakened
.
During:O
the:O
Second:event-attack/battle/war/militaryconflict
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
,:O
the:O
currency:O
on:O
the:O
occupied:O
Czech:location-GPE
territory:O
was:O
artificially:O
weakened:O
.:O