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
process
was
completed
by
2007
.
This:O
process:O
was:O
completed:O
by:O
2007:O
.:O