With no explanation, label each line with "O", "event-protest", "location-other", "person-politician", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
September
1991
Mineriad
was
a
political
action
and
physical
confrontation
between
the
miners
of
the
Jiu
Valley
and
the
Romanian
authorities
,
that
led
to
the
resignation
of
Prime
Minister
Petre
Roman
's
government
.
September:O
1991:O
Mineriad:event-protest
was:O
a:O
political:O
action:O
and:O
physical:O
confrontation:O
between:O
the:O
miners:O
of:O
the:O
Jiu:location-other
Valley:location-other
and:O
the:O
Romanian:organization-government/governmentagency
authorities:organization-government/governmentagency
,:O
that:O
led:O
to:O
the:O
resignation:O
of:O
Prime:O
Minister:O
Petre:person-politician
Roman:person-politician
's:O
government:O
.:O