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 ":".
Per-capita
surface-water
availability
for
irrigation
was
5,260
cubic
meters
per
year
in
1951
.
Per-capita:O
surface-water:O
availability:O
for:O
irrigation:O
was:O
5,260:O
cubic:O
meters:O
per:O
year:O
in:O
1951:O
.:O