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 ":".
10
cm
downwards
at
a
range
of
100
meters
.
10:O
cm:O
downwards:O
at:O
a:O
range:O
of:O
100:O
meters:O
.:O