With no explanation, label each line with "O", "person-athlete", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
After
giving
up
football
,
West
worked
in
security
at
RAF
Woodvale
and
became
an
after
dinner
speaker
.
After:O
giving:O
up:O
football:O
,:O
West:person-athlete
worked:O
in:O
security:O
at:O
RAF:organization-other
Woodvale:organization-other
and:O
became:O
an:O
after:O
dinner:O
speaker:O
.:O