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 ":".
Pahlavi
left
Iran
before
the
1979
revolution
along
with
other
relatives
.
Pahlavi:person-other
left:O
Iran:location-GPE
before:O
the:O
1979:O
revolution:O
along:O
with:O
other:O
relatives:O
.:O