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
carbon
oxygen
bond
length
is
1.376
Å
.
The:O
carbon:O
oxygen:O
bond:O
length:O
is:O
1.376:O
Å:O
.:O