With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Braathens
SAFE
had
also
been
in
negotiations
with
British
Airways
.
Braathens:organization-company
SAFE:organization-company
had:O
also:O
been:O
in:O
negotiations:O
with:O
British:organization-company
Airways:organization-company
.:O