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 ":".
On
11
April
2005
,
the
foreign
ministers
of
the
American
nations
(
or
their
plenipotentiary
representatives
)
gathered
to
elect
the
new
Secretary
General
.
On:O
11:O
April:O
2005:O
,:O
the:O
foreign:O
ministers:O
of:O
the:O
American:location-GPE
nations:O
(:O
or:O
their:O
plenipotentiary:O
representatives:O
):O
gathered:O
to:O
elect:O
the:O
new:O
Secretary:O
General:O
.:O