With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
It
is
released
as
free
software
under
the
terms
of
the
GNU
General
Public
License
,
version
2
.
It:O
is:O
released:O
as:O
free:O
software:O
under:O
the:O
terms:O
of:O
the:O
GNU:O
General:O
Public:O
License:O
,:O
version:O
2:O
.:O