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
was
part
of
the
British
landing
force
defeated
by
German
colonial
troops
at
the
Battle
of
Tanga
.
It:O
was:O
part:O
of:O
the:O
British:O
landing:O
force:O
defeated:O
by:O
German:O
colonial:O
troops:O
at:O
the:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
Tanga:event-attack/battle/war/militaryconflict
.:O