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 ":".
And
that
built
our
audience
.
''
And:O
that:O
built:O
our:O
audience:O
.:O
'':O