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 ":".
Fontana
recorded
unreleased
material
until
her
first
release
in
1999
.
Fontana:O
recorded:O
unreleased:O
material:O
until:O
her:O
first:O
release:O
in:O
1999:O
.:O