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 ":".
The
2019
season
was
the
Oakland
Raiders
'
60th
since
they
were
founded
,
their
50th
in
the
National
Football
League
and
their
second
under
head
coach
Jon
Gruden
since
his
rehiring
by
the
organization
(
sixth
overall
)
.
The:O
2019:O
season:O
was:O
the:O
Oakland:organization-sportsteam
Raiders:organization-sportsteam
':O
60th:O
since:O
they:O
were:O
founded:O
,:O
their:O
50th:O
in:O
the:O
National:organization-sportsleague
Football:organization-sportsleague
League:organization-sportsleague
and:O
their:O
second:O
under:O
head:O
coach:O
Jon:person-other
Gruden:person-other
since:O
his:O
rehiring:O
by:O
the:O
organization:O
(:O
sixth:O
overall:O
):O
.:O