With no explanation, label each line with "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Still
,
Dallas
quickly
forced
a
punt
and
again
achieved
excellent
field
position
as
Johnson
returned
it
8
yards
to
their
46-yard
line
.
Still:O
,:O
Dallas:person-athlete
quickly:O
forced:O
a:O
punt:O
and:O
again:O
achieved:O
excellent:O
field:O
position:O
as:O
Johnson:person-athlete
returned:O
it:O
8:O
yards:O
to:O
their:O
46-yard:O
line:O
.:O