With no explanation, label each line with "O", "location-road/railway/highway/transit", "organization-politicalparty", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
After
Antietam
,
Kimball
's
Independent
Brigade
,
which
included
the
14th
Indiana
,
was
given
the
nickname
of
the
``
Gibraltar
Brigade
``
for
maintaining
its
position
along
the
Sunken
Road
and
for
its
assault
on
Confederate
forces
,
driving
them
from
the
battlefield
.
After:O
Antietam:event-attack/battle/war/militaryconflict
,:O
Kimball:organization-politicalparty
's:organization-politicalparty
Independent:organization-politicalparty
Brigade:organization-politicalparty
,:O
which:O
included:O
the:O
14th:organization-politicalparty
Indiana:organization-politicalparty
,:O
was:O
given:O
the:O
nickname:O
of:O
the:O
``:O
Gibraltar:organization-politicalparty
Brigade:organization-politicalparty
``:O
for:O
maintaining:O
its:O
position:O
along:O
the:O
Sunken:location-road/railway/highway/transit
Road:location-road/railway/highway/transit
and:O
for:O
its:O
assault:O
on:O
Confederate:organization-politicalparty
forces:organization-politicalparty
,:O
driving:O
them:O
from:O
the:O
battlefield:O
.:O