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 ":".
Later
,
1
APC
Sqn
would
be
used
to
form
the
3rd
Cavalry
Regiment
.
Later:O
,:O
1:O
APC:O
Sqn:O
would:O
be:O
used:O
to:O
form:O
the:O
3rd:organization-other
Cavalry:organization-other
Regiment:organization-other
.:O