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
would
not
score
again
until
21
August
1918
.
He:O
would:O
not:O
score:O
again:O
until:O
21:O
August:O
1918:O
.:O