With no explanation, label each line with "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
enlisted
in
the
First
AIF
in
July
1915
.
He:O
enlisted:O
in:O
the:O
First:organization-other
AIF:organization-other
in:O
July:O
1915:O
.:O