With no explanation, label each line with "location-GPE", "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
By
this
time
,
Japonic
had
also
spread
to
the
Ryukyu
Islands
such
as
Okinawa
.
By:O
this:O
time:O
,:O
Japonic:location-GPE
had:O
also:O
spread:O
to:O
the:O
Ryukyu:location-island
Islands:location-island
such:O
as:O
Okinawa:location-island
.:O