With no explanation, label each line with "O", "person-scholar", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
precise
origin
of
the
term
is
unknown
,
but
it
is
generally
attributed
to
Milton
Friedman
.
The:O
precise:O
origin:O
of:O
the:O
term:O
is:O
unknown:O
,:O
but:O
it:O
is:O
generally:O
attributed:O
to:O
Milton:person-scholar
Friedman:person-scholar
.:O