With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Kohanabad
District
(
)
is
a
district
(
bakhsh
)
in
Aradan
County
,
Semnan
Province
,
Iran
.
Kohanabad:location-GPE
District:location-GPE
(:O
):O
is:O
a:O
district:O
(:O
bakhsh:O
):O
in:O
Aradan:location-GPE
County:location-GPE
,:O
Semnan:location-GPE
Province:location-GPE
,:O
Iran:location-GPE
.:O