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 ":".
Rules
are
organized
into
chains
,
or
in
other
words
,
``
chains
of
rules
''
.
Rules:O
are:O
organized:O
into:O
chains:O
,:O
or:O
in:O
other:O
words:O
,:O
``:O
chains:O
of:O
rules:O
'':O
.:O