With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
This
leaves
each
level
more
accessible
to
analysis
via
the
ontologies
which
constitute
the
human
social
experience
:
space
and
time
(
``
and
thus
,
in
one
sense
,
'history
'
.
''
)
This:O
leaves:O
each:O
level:O
more:O
accessible:O
to:O
analysis:O
via:O
the:O
ontologies:O
which:O
constitute:O
the:O
human:O
social:O
experience:O
::O
space:O
and:O
time:O
(:O
``:O
and:O
thus:O
,:O
in:O
one:O
sense:O
,:O
'history:O
':O
.:O
'':O
):O