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 ":".
In
2009
he
improved
to
2009
.
In:O
2009:O
he:O
improved:O
to:O
2009:O
.:O