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 ":".
66
candidates
competed
in
this
year
's
edition
.
66:O
candidates:O
competed:O
in:O
this:O
year:O
's:O
edition:O
.:O