With no explanation, label each line with "O", "event-other", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Under
the
Childers
Reforms
it
amalgamated
with
the
61st
(
South
Gloucestershire
)
Regiment
of
Foot
to
form
the
Gloucestershire
Regiment
in
1881
.
Under:O
the:O
Childers:event-other
Reforms:event-other
it:O
amalgamated:O
with:O
the:organization-other
61st:organization-other
(:organization-other
South:organization-other
Gloucestershire:organization-other
):organization-other
Regiment:organization-other
of:organization-other
Foot:organization-other
to:O
form:O
the:O
Gloucestershire:organization-other
Regiment:organization-other
in:O
1881:O
.:O