With no explanation, label each line with "person-athlete", "organization-sportsleague", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Jack
Walsh
nicknamed
``
Duck
``
was
an
Australian
professional
rugby
league
footballer
who
played
in
the
1930s
,
1940s
and
1950s
.
Jack:person-athlete
Walsh:person-athlete
nicknamed:O
``:O
Duck:person-athlete
``:O
was:O
an:O
Australian:organization-sportsleague
professional:organization-sportsleague
rugby:organization-sportsleague
league:organization-sportsleague
footballer:O
who:O
played:O
in:O
the:O
1930s:O
,:O
1940s:O
and:O
1950s:O
.:O