With no explanation, label each line with "O", "event-protest", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Imperialism
was
held
to
have
caused
the
Russo-Japanese
War
and
the
First
World
War
,
with
the
1905
Russian
Revolution
presented
as
``
the
first
people
's
revolution
of
the
imperialist
epoch
''
and
the
October
Revolution
is
said
to
have
been
rooted
in
``
the
nationwide
movement
against
imperialist
war
and
for
peace
.
''
Imperialism:O
was:O
held:O
to:O
have:O
caused:O
the:O
Russo-Japanese:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
and:O
the:O
First:event-attack/battle/war/militaryconflict
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
,:O
with:O
the:O
1905:O
Russian:event-protest
Revolution:event-protest
presented:O
as:O
``:O
the:O
first:O
people:O
's:O
revolution:O
of:O
the:O
imperialist:O
epoch:O
'':O
and:O
the:O
October:event-protest
Revolution:event-protest
is:O
said:O
to:O
have:O
been:O
rooted:O
in:O
``:O
the:O
nationwide:O
movement:O
against:O
imperialist:O
war:O
and:O
for:O
peace:O
.:O
'':O