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 ":".
This
was
once
an
intersection
with
PA
137
.
This:O
was:O
once:O
an:O
intersection:O
with:O
PA:location-road/railway/highway/transit
137:location-road/railway/highway/transit
.:O