With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
May
1842
,
Akbar
Khan
captured
Bala
Hissar
in
Kabul
and
became
the
new
emir
of
Afghanistan
.
In:O
May:O
1842:O
,:O
Akbar:person-other
Khan:person-other
captured:O
Bala:location-GPE
Hissar:location-GPE
in:O
Kabul:location-GPE
and:O
became:O
the:O
new:O
emir:O
of:O
Afghanistan:location-GPE
.:O