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
arena
currently
holds
16,281
for
ice
hockey
,
though
capacity
at
its
opening
was
15,713
.
The:O
arena:O
currently:O
holds:O
16,281:O
for:O
ice:O
hockey:O
,:O
though:O
capacity:O
at:O
its:O
opening:O
was:O
15,713:O
.:O