With no explanation, label each line with "building-other", "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Taken
off
nuclear
alert
after
the
end
of
the
Cold
War
,
the
squadron
was
inactivated
in
1994
with
the
inactivation
of
its
parent
unit
and
the
close
of
Castle
Air
Force
Base
.
Taken:O
off:O
nuclear:O
alert:O
after:O
the:O
end:O
of:O
the:O
Cold:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
,:O
the:O
squadron:O
was:O
inactivated:O
in:O
1994:O
with:O
the:O
inactivation:O
of:O
its:O
parent:O
unit:O
and:O
the:O
close:O
of:O
Castle:building-other
Air:building-other
Force:building-other
Base:building-other
.:O