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 ":".
These
services
normally
use
platforms
3
and
4
.
These:O
services:O
normally:O
use:O
platforms:O
3:O
and:O
4:O
.:O