With no explanation, label each line with "person-athlete", "event-sportsevent", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Serena
Williams
was
the
defending
champion
and
successfully
defended
her
title
,
defeating
Angelique
Kerber
in
the
final
,
7–5
,
6–3
to
win
the
Ladies
'
Singles
tennis
title
at
the
2016
Wimbledon
Championships
.
Serena:person-athlete
Williams:person-athlete
was:O
the:O
defending:O
champion:O
and:O
successfully:O
defended:O
her:O
title:O
,:O
defeating:O
Angelique:person-athlete
Kerber:person-athlete
in:O
the:O
final:O
,:O
7–5:O
,:O
6–3:O
to:O
win:O
the:O
Ladies:O
':O
Singles:O
tennis:O
title:O
at:O
the:O
2016:O
Wimbledon:event-sportsevent
Championships:event-sportsevent
.:O