With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
However
,
the
message
never
arrived
,
which
was
put
down
to
Japanese
concerns
that
Diệm
would
seek
to
govern
independently
,
rather
than
toe
the
Japanese
line
.
However:O
,:O
the:O
message:O
never:O
arrived:O
,:O
which:O
was:O
put:O
down:O
to:O
Japanese:location-GPE
concerns:O
that:O
Diệm:person-politician
would:O
seek:O
to:O
govern:O
independently:O
,:O
rather:O
than:O
toe:O
the:O
Japanese:location-GPE
line:O
.:O