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 ":".
Ratio
decompression
(
usually
referred
to
in
abbreviated
form
as
ratio
deco
)
is
a
technique
for
calculating
decompression
schedules
for
scuba
divers
engaged
in
deep
diving
without
using
dive
tables
,
decompression
software
or
a
dive
computer
.
Ratio:O
decompression:O
(:O
usually:O
referred:O
to:O
in:O
abbreviated:O
form:O
as:O
ratio:O
deco:O
):O
is:O
a:O
technique:O
for:O
calculating:O
decompression:O
schedules:O
for:O
scuba:O
divers:O
engaged:O
in:O
deep:O
diving:O
without:O
using:O
dive:O
tables:O
,:O
decompression:O
software:O
or:O
a:O
dive:O
computer:O
.:O