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 ":".
CAIN
also
lists
the
Real
IRA
as
perpetrators
.
CAIN:O
also:O
lists:O
the:organization-other
Real:organization-other
IRA:organization-other
as:O
perpetrators:O
.:O