With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
On
2
August
1944
he
abandoned
his
post
and
joined
the
partisan
fighters
.
On:O
2:O
August:O
1944:O
he:O
abandoned:O
his:O
post:O
and:O
joined:O
the:O
partisan:O
fighters:O
.:O