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 ":".
This
home
continued
until
1983
but
it
was
amalgamated
with
another
in
1969
.
This:O
home:O
continued:O
until:O
1983:O
but:O
it:O
was:O
amalgamated:O
with:O
another:O
in:O
1969:O
.:O