With no explanation, label each line with "O", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Stadler
Regio-Shuttle
RS1
diesel
railcars
have
operated
on
the
Southern
Railway
since
autumn
1998
to
cater
for
the
increased
traffic
.
Stadler:product-train
Regio-Shuttle:product-train
RS1:product-train
diesel:O
railcars:O
have:O
operated:O
on:O
the:O
Southern:O
Railway:O
since:O
autumn:O
1998:O
to:O
cater:O
for:O
the:O
increased:O
traffic:O
.:O