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 ":".
Guests
often
include
social
service
providers
.
Guests:O
often:O
include:O
social:O
service:O
providers:O
.:O