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 ":".
This
,
usually
obtained
as
a
colorless
,
crystalline
solid
,
is
a
common
oxidizer
used
in
fireworks
,
ammunition
percussion
caps
,
explosive
primers
,
and
is
used
variously
in
propellants
,
flash
compositions
,
stars
,
and
sparklers
.
This:O
,:O
usually:O
obtained:O
as:O
a:O
colorless:O
,:O
crystalline:O
solid:O
,:O
is:O
a:O
common:O
oxidizer:O
used:O
in:O
fireworks:O
,:O
ammunition:O
percussion:O
caps:O
,:O
explosive:O
primers:O
,:O
and:O
is:O
used:O
variously:O
in:O
propellants:O
,:O
flash:O
compositions:O
,:O
stars:O
,:O
and:O
sparklers:O
.:O