With no explanation, label each line with "O", "organization-other", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
retaliation
,
in
what
came
to
be
known
as
the
,
an
Imperial
Way
Faction
officer
,
Lieutenant
Colonel
Saburo
Aizawa
,
assassinated
Mazaki
’
s
successor
,
Toseiha
faction
Major
General
Tetsuzan
Nagata
on
12
August
1935
,
cutting
him
down
with
his
sword
in
his
office
.
In:O
retaliation:O
,:O
in:O
what:O
came:O
to:O
be:O
known:O
as:O
the:O
,:O
an:O
Imperial:organization-other
Way:organization-other
Faction:organization-other
officer:O
,:O
Lieutenant:O
Colonel:O
Saburo:person-other
Aizawa:person-other
,:O
assassinated:O
Mazaki:O
’:O
s:O
successor:O
,:O
Toseiha:O
faction:O
Major:O
General:O
Tetsuzan:person-other
Nagata:person-other
on:O
12:O
August:O
1935:O
,:O
cutting:O
him:O
down:O
with:O
his:O
sword:O
in:O
his:O
office:O
.:O