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 ":".
It
was
opened
for
goods
traffic
on
18
January
1909
.
It:O
was:O
opened:O
for:O
goods:O
traffic:O
on:O
18:O
January:O
1909:O
.:O