With no explanation, label each line with "O", "location-mountain", "organization-company", "product-other", "location-GPE", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
At
the
time
of
the
2011
blackout
,
San
Diego
Gas
&
amp
;
Electric
(
SDG
&
amp
;
E
,
a
subsidiary
of
Sempra
Energy
)
was
connected
to
Arizona
by
the
Southwest
Power
Link
,
which
is
a
single
500
kV
power
line
(
the
next
year
,
SDG
&
amp
;
E
completed
a
second
line
,
the
500
kV
Sunrise
Power
Link
which
was
under
construction
during
the
event
but
still
,
it
only
parallels
the
Southwest
Power
Link
and
connects
back
to
it
at
Imperial
Valley
;
the
remaining
section
into
Arizona
is
still
a
single
line
)
.
At:O
the:O
time:O
of:O
the:O
2011:O
blackout:O
,:O
San:organization-company
Diego:organization-company
Gas:organization-company
&:organization-company
amp:organization-company
;:organization-company
Electric:organization-company
(:O
SDG:organization-company
&:organization-company
amp:organization-company
;:organization-company
E:organization-company
,:O
a:O
subsidiary:O
of:O
Sempra:organization-company
Energy:organization-company
):O
was:O
connected:O
to:O
Arizona:location-GPE
by:O
the:O
Southwest:product-other
Power:product-other
Link:product-other
,:O
which:O
is:O
a:O
single:O
500:O
kV:O
power:O
line:O
(:O
the:O
next:O
year:O
,:O
SDG:organization-company
&:organization-company
amp:organization-company
;:organization-company
E:organization-company
completed:O
a:O
second:O
line:O
,:O
the:O
500:O
kV:O
Sunrise:product-other
Power:product-other
Link:product-other
which:O
was:O
under:O
construction:O
during:O
the:O
event:O
but:O
still:O
,:O
it:O
only:O
parallels:O
the:O
Southwest:product-other
Power:product-other
Link:product-other
and:O
connects:O
back:O
to:O
it:O
at:O
Imperial:location-mountain
Valley:location-mountain
;:O
the:O
remaining:O
section:O
into:O
Arizona:location-GPE
is:O
still:O
a:O
single:O
line:O
):O
.:O