With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Cornhuskers
had
battled
back
from
a
17-31
deficit
at
the
start
of
the
fourth
quarter
without
Heisman
winning
HB
Mike
Rozier
who
left
due
to
injury
.
The:O
Cornhuskers:organization-sportsteam
had:O
battled:O
back:O
from:O
a:O
17-31:O
deficit:O
at:O
the:O
start:O
of:O
the:O
fourth:O
quarter:O
without:O
Heisman:organization-sportsteam
winning:O
HB:O
Mike:person-athlete
Rozier:person-athlete
who:O
left:O
due:O
to:O
injury:O
.:O