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
the
site
of
the
Battle
for
The
Hague
on
10
May
1940
,
at
the
beginning
of
World
War
II
.
It:O
was:O
the:O
site:O
of:O
the:O
Battle:event-attack/battle/war/militaryconflict
for:event-attack/battle/war/militaryconflict
The:event-attack/battle/war/militaryconflict
Hague:event-attack/battle/war/militaryconflict
on:O
10:O
May:O
1940:O
,:O
at:O
the:O
beginning:O
of:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
.:O