With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Shortly
after
opening
,
the
Stratosphere
Las
Vegas
on
April
30
,
1996
,
the
Stratosphere
Corporation
was
forced
to
file
for
bankruptcy
.
Shortly:O
after:O
opening:O
,:O
the:O
Stratosphere:organization-company
Las:organization-company
Vegas:organization-company
on:O
April:O
30:O
,:O
1996:O
,:O
the:O
Stratosphere:organization-company
Corporation:organization-company
was:O
forced:O
to:O
file:O
for:O
bankruptcy:O
.:O