With no explanation, label each line with "location-GPE", "O", "event-election", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
the
United
States
,
a
debate
about
whether
to
ratify
the
treaty
took
place
during
the
lead-up
to
the
2010
midterm
elections
and
in
the
lame-duck
congressional
session
afterward
.
In:O
the:O
United:location-GPE
States:location-GPE
,:O
a:O
debate:O
about:O
whether:O
to:O
ratify:O
the:O
treaty:O
took:O
place:O
during:O
the:O
lead-up:O
to:O
the:O
2010:event-election
midterm:event-election
elections:event-election
and:O
in:O
the:O
lame-duck:O
congressional:O
session:O
afterward:O
.:O