With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
island
is
roughly
in
extent
.
The:O
island:O
is:O
roughly:O
in:O
extent:O
.:O