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 ":".
His
courteous
good
nature
seemed
never
to
fail
him
.
His:O
courteous:O
good:O
nature:O
seemed:O
never:O
to:O
fail:O
him:O
.:O