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
poem
's
theme
is
contained
in
the
final
verse
:
The:O
poem:O
's:O
theme:O
is:O
contained:O
in:O
the:O
final:O
verse:O
::O