With no explanation, label each line with "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Japanese
Communist
Party
held
its
ground
with
nine
seats
,
while
the
Social
Democratic
Party
won
seven
,
a
gain
of
one
.
The:O
Japanese:organization-politicalparty
Communist:organization-politicalparty
Party:organization-politicalparty
held:O
its:O
ground:O
with:O
nine:O
seats:O
,:O
while:O
the:O
Social:organization-politicalparty
Democratic:organization-politicalparty
Party:organization-politicalparty
won:O
seven:O
,:O
a:O
gain:O
of:O
one:O
.:O