With no explanation, label each line with "art-broadcastprogram", "O", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
``
Street
Customs
``
would
change
names
twice
and
networks
four
times
,
but
its
format
remained
constant
.
``:O
Street:art-broadcastprogram
Customs:art-broadcastprogram
``:O
would:O
change:O
names:O
twice:O
and:O
networks:O
four:O
times:O
,:O
but:O
its:O
format:O
remained:O
constant:O
.:O