With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
However
,
the
negotiators
could
not
secure
a
general
amnesty
for
the
provisional
government
.
However:O
,:O
the:O
negotiators:O
could:O
not:O
secure:O
a:O
general:O
amnesty:O
for:O
the:O
provisional:O
government:O
.:O