With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
On
July
1
,
2011
,
Prout
was
signed
by
the
Blue
Jackets
to
a
three-year
entry-level
contract
.
On:O
July:O
1:O
,:O
2011:O
,:O
Prout:person-athlete
was:O
signed:O
by:O
the:O
Blue:organization-sportsteam
Jackets:organization-sportsteam
to:O
a:O
three-year:O
entry-level:O
contract:O
.:O