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
hotel
originally
opened
on
January
1
,
1857
.
The:O
hotel:O
originally:O
opened:O
on:O
January:O
1:O
,:O
1857:O
.:O