With no explanation, label each line with "O", "location-road/railway/highway/transit", "location-mountain", "location-other", "location-GPE", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
On
December
29
,
1914
,
the
new
Stockton
Street
Tunne
l
under
Nob
Hill
opened
,
allowing
streetcars
from
downtown
to
go
to
North
Beach
and
the
new
Marina
District
.
On:O
December:O
29:O
,:O
1914:O
,:O
the:O
new:O
Stockton:location-road/railway/highway/transit
Street:location-road/railway/highway/transit
Tunne:location-road/railway/highway/transit
l:O
under:O
Nob:location-mountain
Hill:location-mountain
opened:O
,:O
allowing:O
streetcars:O
from:O
downtown:O
to:O
go:O
to:O
North:location-other
Beach:location-other
and:O
the:O
new:O
Marina:location-GPE
District:location-GPE
.:O