With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Later
after
1990
when
the
route
electrified
till
Erode
,
it
used
electric
locomotive
from
Chennai
to
Erode
and
a
diesel
loco
from
Erode
to
Mangalore
.
Later:O
after:O
1990:O
when:O
the:O
route:O
electrified:O
till:O
Erode:location-GPE
,:O
it:O
used:O
electric:O
locomotive:O
from:O
Chennai:location-GPE
to:O
Erode:location-GPE
and:O
a:O
diesel:O
loco:O
from:O
Erode:location-GPE
to:O
Mangalore:location-GPE
.:O