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
succumbed
to
peritonitis
after
an
operation
for
appendicitis
.
He:O
succumbed:O
to:O
peritonitis:O
after:O
an:O
operation:O
for:O
appendicitis:O
.:O