With no explanation, label each line with "building-other", "O", "product-software", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
functionality
descends
from
a
``
portable
I/O
package
''
written
by
Mike
Lesk
at
Bell
Labs
in
the
early
1970s
,
and
officially
became
part
of
the
Unix
operating
system
in
Version
7
.
The:O
functionality:O
descends:O
from:O
a:O
``:O
portable:O
I/O:O
package:O
'':O
written:O
by:O
Mike:person-scholar
Lesk:O
at:O
Bell:building-other
Labs:building-other
in:O
the:O
early:O
1970s:O
,:O
and:O
officially:O
became:O
part:O
of:O
the:O
Unix:product-software
operating:product-software
system:product-software
in:O
Version:O
7:O
.:O