With no explanation, label each line with "event-attack/battle/war/militaryconflict", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Merezhkovskys
greeted
the
1917
February
Revolution
and
denounced
the
October
Revolution
,
blaming
Alexander
Kerensky
and
his
Provisional
government
for
the
catastrophe
.
The:person-politician
Merezhkovskys:person-politician
greeted:O
the:O
1917:event-attack/battle/war/militaryconflict
February:event-attack/battle/war/militaryconflict
Revolution:event-attack/battle/war/militaryconflict
and:O
denounced:O
the:O
October:event-attack/battle/war/militaryconflict
Revolution:event-attack/battle/war/militaryconflict
,:O
blaming:O
Alexander:person-politician
Kerensky:person-politician
and:O
his:O
Provisional:O
government:O
for:O
the:O
catastrophe:O
.:O