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 ":".
All
three
shows
were
subsequently
cancelled
because
of
low
ratings
.
All:O
three:O
shows:O
were:O
subsequently:O
cancelled:O
because:O
of:O
low:O
ratings:O
.:O