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
engine
,
a
Midland
Railway
1000
Class
No
.
The:O
engine:O
,:O
a:O
Midland:O
Railway:O
1000:O
Class:O
No:O
.:O