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 ":".
Winners
were
announced
in
1964
.
Winners:O
were:O
announced:O
in:O
1964:O
.:O