With no explanation, label each line with "O", "other-currency", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Before
World
War
I
,
the
Ottoman
lira
was
used
.
Before:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
I:event-attack/battle/war/militaryconflict
,:O
the:O
Ottoman:other-currency
lira:other-currency
was:O
used:O
.:O