With no explanation, label each line with "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
station
is
being
maintained
by
the
Integral
Coach
Factory
(
ICF
)
,
the
premier
production
unit
of
the
Indian
railways
.
The:O
station:O
is:O
being:O
maintained:O
by:O
the:O
Integral:organization-company
Coach:organization-company
Factory:organization-company
(:O
ICF:organization-company
):O
,:O
the:O
premier:O
production:O
unit:O
of:O
the:O
Indian:location-GPE
railways:O
.:O