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 ":".
Active
chapters
in
bold
,
inactive
chapters
in
``
italics
''
.
Active:O
chapters:O
in:O
bold:O
,:O
inactive:O
chapters:O
in:O
``:O
italics:O
'':O
.:O