With no explanation, label each line with "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Following
independence
,
proclaimed
on
20
March
1956
,
a
National
Constituent
Assembly
was
elected
,
on
25
March
,
in
order
to
write
a
constitution
.
Following:O
independence:O
,:O
proclaimed:O
on:O
20:O
March:O
1956:O
,:O
a:O
National:organization-government/governmentagency
Constituent:organization-government/governmentagency
Assembly:organization-government/governmentagency
was:O
elected:O
,:O
on:O
25:O
March:O
,:O
in:O
order:O
to:O
write:O
a:O
constitution:O
.:O