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 ":".
He
then
served
as
maritime
law
minister
until
1979
.
He:O
then:O
served:O
as:O
maritime:O
law:O
minister:O
until:O
1979:O
.:O