With no explanation, label each line with "person-athlete", "organization-sportsleague", "organization-company", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Williams
retired
from
Disney
in
November
2007
,
stepping
down
to
focus
on
rehabilitating
his
legs
from
damage
sustained
during
his
playing
NFL
career
.
Williams:person-athlete
retired:O
from:O
Disney:organization-company
in:O
November:O
2007:O
,:O
stepping:O
down:O
to:O
focus:O
on:O
rehabilitating:O
his:O
legs:O
from:O
damage:O
sustained:O
during:O
his:O
playing:O
NFL:organization-sportsleague
career:O
.:O