With no explanation, label each line with "location-GPE", "O", "person-politician", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
They
raised
banners
in
Czech
and
Russian
,
expressing
support
of
the
Czechoslovak
independence
and
solidarity
with
Alexander
Dubček
,
the
Czechoslovak
leader
who
was
the
architect
of
the
Prague
Spring
.
They:O
raised:O
banners:O
in:O
Czech:location-GPE
and:O
Russian:location-GPE
,:O
expressing:O
support:O
of:O
the:O
Czechoslovak:location-GPE
independence:O
and:O
solidarity:O
with:O
Alexander:person-politician
Dubček:person-politician
,:O
the:O
Czechoslovak:location-GPE
leader:O
who:O
was:O
the:O
architect:O
of:O
the:O
Prague:event-attack/battle/war/militaryconflict
Spring:event-attack/battle/war/militaryconflict
.:O