With no explanation, label each line with "O", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
However
,
the
midfielder
returned
to
Negombo
Youth
ahead
of
the
2008–09
season
.
However:O
,:O
the:O
midfielder:O
returned:O
to:O
Negombo:organization-sportsteam
Youth:organization-sportsteam
ahead:O
of:O
the:O
2008–09:O
season:O
.:O