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 ":".
Concerned
about
the
political
climate
in
Laos
after
the
1975
communist
revolution
,
Sulilat
crossed
Mekong
fleeing
to
Thailand
.
Concerned:O
about:O
the:O
political:O
climate:O
in:O
Laos:location-GPE
after:O
the:O
1975:O
communist:O
revolution:O
,:O
Sulilat:O
crossed:O
Mekong:O
fleeing:O
to:O
Thailand:O
.:O