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 ":".
Mountainous
areas
cover
approximately
7.41
%
of
the
surface
;
the
semi-flat
areas
74.62
%
;
plants
cover
17.95
%
.
Mountainous:O
areas:O
cover:O
approximately:O
7.41:O
%:O
of:O
the:O
surface:O
;:O
the:O
semi-flat:O
areas:O
74.62:O
%:O
;:O
plants:O
cover:O
17.95:O
%:O
.:O