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 ":".
The
Battle
of
Bergendal
had
forced
the
Boers
to
abandon
their
hopes
of
achieving
an
outcome
through
direct
,
military
confrontation
of
the
enemy
.
The:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
Bergendal:event-attack/battle/war/militaryconflict
had:O
forced:O
the:O
Boers:O
to:O
abandon:O
their:O
hopes:O
of:O
achieving:O
an:O
outcome:O
through:O
direct:O
,:O
military:O
confrontation:O
of:O
the:O
enemy:O
.:O