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
death
was
caused
by
accidental
ingestion
of
poison
,
which
he
mistook
for
whiskey
.
His:O
death:O
was:O
caused:O
by:O
accidental:O
ingestion:O
of:O
poison:O
,:O
which:O
he:O
mistook:O
for:O
whiskey:O
.:O