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 ":".
Area
of
ocean
protected
is
.
Area:O
of:O
ocean:O
protected:O
is:O
.:O