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 ":".
Established
on
1
February
1979
.
Established:O
on:O
1:O
February:O
1979:O
.:O