With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
On
January
17
,
2019
,
Nua
joined
the
coaching
staff
of
Jim
Harbaugh
at
Michigan
as
defensive
line
coach
.
On:O
January:O
17:O
,:O
2019:O
,:O
Nua:person-athlete
joined:O
the:O
coaching:O
staff:O
of:O
Jim:organization-sportsteam
Harbaugh:organization-sportsteam
at:O
Michigan:organization-education
as:O
defensive:O
line:O
coach:O
.:O