With no explanation, label each line with "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
its
maximum
,
Greater
Bougainville
would
have
had
a
total
land
area
of
around
.
At:O
its:O
maximum:O
,:O
Greater:location-island
Bougainville:location-island
would:O
have:O
had:O
a:O
total:O
land:O
area:O
of:O
around:O
.:O