With no explanation, label each line with "O", "organization-sportsleague", "organization-sportsteam", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Powell
signed
for
Sheffield
Tigers
's
Conference
League
side
,
Sheffield
Prowlers
in
2002
.
Powell:person-other
signed:O
for:O
Sheffield:organization-sportsleague
Tigers:organization-sportsleague
's:organization-sportsleague
Conference:organization-sportsleague
League:organization-sportsleague
side:O
,:O
Sheffield:organization-sportsteam
Prowlers:organization-sportsteam
in:O
2002:O
.:O