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 ":".
As
the
Rhineland
Campaign
drew
to
a
close
,
the
battalion
seemed
poised
to
return
home
.
As:O
the:O
Rhineland:event-attack/battle/war/militaryconflict
Campaign:event-attack/battle/war/militaryconflict
drew:O
to:O
a:O
close:O
,:O
the:O
battalion:O
seemed:O
poised:O
to:O
return:O
home:O
.:O