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 ":".
Dockery
then
helped
raise
and
was
elected
Colonel
of
the
19th
Arkansas
Infantry
Regiment
.
Dockery:person-soldier
then:O
helped:O
raise:O
and:O
was:O
elected:O
Colonel:O
of:O
the:O
19th:organization-other
Arkansas:organization-other
Infantry:organization-other
Regiment:organization-other
.:O