With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
line
was
first
put
into
operation
with
ETCS
version
SRS
2.3.0d
(
with
additional
changes
)
,
and
it
was
initially
scheduled
to
be
upgraded
to
full
functionality
under
ETCS
Baseline
3
at
the
end
of
2017
.
The:O
line:O
was:O
first:O
put:O
into:O
operation:O
with:O
ETCS:O
version:O
SRS:O
2.3.0d:O
(:O
with:O
additional:O
changes:O
):O
,:O
and:O
it:O
was:O
initially:O
scheduled:O
to:O
be:O
upgraded:O
to:O
full:O
functionality:O
under:O
ETCS:O
Baseline:O
3:O
at:O
the:O
end:O
of:O
2017:O
.:O