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 ":".
It
has
an
area
of
19.38
square
kilometres
and
a
population
of
43000
.
It:O
has:O
an:O
area:O
of:O
19.38:O
square:O
kilometres:O
and:O
a:O
population:O
of:O
43000:O
.:O