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 ":".
These
links
to
the
Russian
rail
system
are
sometimes
called
the
Eurasian
Railway
.
These:O
links:O
to:O
the:O
Russian:location-GPE
rail:O
system:O
are:O
sometimes:O
called:O
the:O
Eurasian:location-road/railway/highway/transit
Railway:location-road/railway/highway/transit
.:O