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 ":".
Nobody
went
to
see
it
.
''
Nobody:O
went:O
to:O
see:O
it:O
.:O
'':O