With no explanation, label each line with "person-soldier", "O", "organization-government/governmentagency", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
After
his
recovery
in
a
hospital
,
Sablin
graduated
the
2nd
Moscow
school
of
ensigns
in
1917
and
then
served
in
the
56th
Reserve
Infantry
Regiment
.
After:O
his:O
recovery:O
in:O
a:O
hospital:O
,:O
Sablin:person-soldier
graduated:O
the:O
2nd:organization-education
Moscow:organization-education
school:organization-education
of:O
ensigns:O
in:O
1917:O
and:O
then:O
served:O
in:O
the:O
56th:O
Reserve:organization-government/governmentagency
Infantry:organization-government/governmentagency
Regiment:organization-government/governmentagency
.:O