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 ":".
The
series
ran
from
1968
to
1975
.
The:O
series:O
ran:O
from:O
1968:O
to:O
1975:O
.:O