With no explanation, label each line with "location-GPE", "O", "product-car", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Deutsche
Reichsbahn
introduced
its
DRG
Class
SVT
877
Hamburg
Flyer
in
1931
.
Deutsche:location-GPE
Reichsbahn:location-GPE
introduced:O
its:O
DRG:product-car
Class:product-car
SVT:product-car
877:product-car
Hamburg:product-car
Flyer:product-car
in:O
1931:O
.:O