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 ":".
Gas
tungsten
arc
welding
(
GTAW
)
,
or
tungsten
inert
gas
(
TIG
)
welding
,
is
a
manual
welding
process
that
uses
a
nonconsumable
tungsten
electrode
,
an
inert
or
semi-inert
gas
mixture
,
and
a
separate
filler
material
.
Gas:O
tungsten:other-chemicalthing
arc:O
welding:O
(:O
GTAW:O
):O
,:O
or:O
tungsten:other-chemicalthing
inert:O
gas:O
(:O
TIG:O
):O
welding:O
,:O
is:O
a:O
manual:O
welding:O
process:O
that:O
uses:O
a:O
nonconsumable:O
tungsten:other-chemicalthing
electrode:O
,:O
an:O
inert:O
or:O
semi-inert:O
gas:O
mixture:O
,:O
and:O
a:O
separate:O
filler:O
material:O
.:O