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 ":".
33
sailors
,
on
10
boats
,
from
10
nations
competed
.
33:O
sailors:O
,:O
on:O
10:O
boats:O
,:O
from:O
10:O
nations:O
competed:O
.:O