With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
was
addicted
to
ice
,
cocaine
and
ecstasy
.
He:O
was:O
addicted:O
to:O
ice:other-chemicalthing
,:O
cocaine:other-chemicalthing
and:O
ecstasy:other-chemicalthing
.:O