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 ":".
The
August
1978
conclave
was
the
first
in
which
this
rule
applied
.
The:O
August:O
1978:O
conclave:O
was:O
the:O
first:O
in:O
which:O
this:O
rule:O
applied:O
.:O