With no explanation, label each line with "person-soldier", "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Brusilov
was
appointed
to
command
the
2nd
Guards
Cavalry
Division
in
1906
,
but
this
was
not
a
happy
posting
for
him
.
Brusilov:person-soldier
was:O
appointed:O
to:O
command:O
the:O
2nd:O
Guards:organization-other
Cavalry:organization-other
Division:organization-other
in:O
1906:O
,:O
but:O
this:O
was:O
not:O
a:O
happy:O
posting:O
for:O
him:O
.:O