With no explanation, label each line with "location-GPE", "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Currently
,
the
Russians
have
returned
to
their
heraldic
past
,
while
the
Germans
use
a
symbol
different
from
that
of
the
Luftwaffe
.
Currently:O
,:O
the:O
Russians:location-GPE
have:O
returned:O
to:O
their:O
heraldic:O
past:O
,:O
while:O
the:O
Germans:location-GPE
use:O
a:O
symbol:O
different:O
from:O
that:O
of:O
the:O
Luftwaffe:organization-other
.:O