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 ":".
By
the
1950s
touring
striptease
acts
were
used
to
attract
audiences
to
the
dying
music
halls
.
By:O
the:O
1950s:O
touring:O
striptease:O
acts:O
were:O
used:O
to:O
attract:O
audiences:O
to:O
the:O
dying:O
music:O
halls:O
.:O