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 ":".
Currently
Amtrak
only
uses
a
small
office
downstairs
at
track
level
while
the
above
space
holds
law
offices
,
a
media
production
business
,
and
financial
investment
offices
.
Currently:O
Amtrak:organization-company
only:O
uses:O
a:O
small:O
office:O
downstairs:O
at:O
track:O
level:O
while:O
the:O
above:O
space:O
holds:O
law:O
offices:O
,:O
a:O
media:O
production:O
business:O
,:O
and:O
financial:O
investment:O
offices:O
.:O