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 ":".
He
died
four
years
later
,
aged
67
.
He:O
died:O
four:O
years:O
later:O
,:O
aged:O
67:O
.:O