With no explanation, label each line with "location-GPE", "O", "location-road/railway/highway/transit", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
It
had
been
erected
in
1931
in
an
urban
square
in
the
south
end
of
Halifax
,
Nova
Scotia
,
opposite
the
Canadian
National
Railway
station
.
It:O
had:O
been:O
erected:O
in:O
1931:O
in:O
an:O
urban:O
square:O
in:O
the:O
south:O
end:O
of:O
Halifax:location-GPE
,:O
Nova:location-GPE
Scotia:location-GPE
,:O
opposite:O
the:O
Canadian:location-road/railway/highway/transit
National:location-road/railway/highway/transit
Railway:location-road/railway/highway/transit
station:O
.:O