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
hidden
meaning
escaped
the
notice
of
the
censors
and
the
poem
was
published
.
This:O
hidden:O
meaning:O
escaped:O
the:O
notice:O
of:O
the:O
censors:O
and:O
the:O
poem:O
was:O
published:O
.:O