With no explanation, label each line with "O", "location-road/railway/highway/transit", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
US
2
runs
through
the
city
.
US:location-road/railway/highway/transit
2:location-road/railway/highway/transit
runs:O
through:O
the:O
city:O
.:O