With no explanation, label each line with "O", "organization-sportsteam", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
This
is
a
list
of
tennis
players
who
have
represented
the
Japan
Davis
Cup
team
in
an
official
Davis
Cup
match
.
This:O
is:O
a:O
list:O
of:O
tennis:O
players:O
who:O
have:O
represented:O
the:O
Japan:organization-sportsteam
Davis:organization-sportsteam
Cup:organization-sportsteam
team:organization-sportsteam
in:O
an:O
official:O
Davis:event-sportsevent
Cup:event-sportsevent
match:O
.:O