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 ":".
This
box
set
was
limited
to
1000
copies
;
a
CD
version
of
3000
copies
also
exists
.
This:O
box:O
set:O
was:O
limited:O
to:O
1000:O
copies:O
;:O
a:O
CD:O
version:O
of:O
3000:O
copies:O
also:O
exists:O
.:O