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 ":".
It
was
also
the
first
to
be
built
,
between
1974
and
1981
.
It:O
was:O
also:O
the:O
first:O
to:O
be:O
built:O
,:O
between:O
1974:O
and:O
1981:O
.:O