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 ":".
Model
steam
engines
typically
use
hexamine
fuel
tablets
,
methylated
spirits
(
aka
meths
or
denatured
alcohol
)
,
butane
gas
,
or
electricity
to
heat
the
boiler
.
Model:O
steam:O
engines:O
typically:O
use:O
hexamine:other-chemicalthing
fuel:O
tablets:O
,:O
methylated:other-chemicalthing
spirits:O
(:O
aka:O
meths:other-chemicalthing
or:O
denatured:O
alcohol:O
):O
,:O
butane:other-chemicalthing
gas:O
,:O
or:O
electricity:O
to:O
heat:O
the:O
boiler:O
.:O