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 ":".
27
Sqn
returned
to
its
Joint
Nuclear
,
Biological
and
Chemical
Regiment
role
.
27:O
Sqn:O
returned:O
to:O
its:O
Joint:organization-other
Nuclear:organization-other
,:organization-other
Biological:organization-other
and:organization-other
Chemical:organization-other
Regiment:organization-other
role:O
.:O