With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
,
in
the
United
States
,
LED
lamps
are
close
to
being
adopted
as
the
mainstream
light
source
because
of
the
falling
prices
and
because
incandescent
lamps
are
being
phased
out
.
,:O
in:O
the:O
United:location-GPE
States:location-GPE
,:O
LED:O
lamps:O
are:O
close:O
to:O
being:O
adopted:O
as:O
the:O
mainstream:O
light:O
source:O
because:O
of:O
the:O
falling:O
prices:O
and:O
because:O
incandescent:O
lamps:O
are:O
being:O
phased:O
out:O
.:O