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 ":".
Introduced
in
1940
and
withdrawn
by
1980
,
they
spent
the
whole
of
their
working
lives
on
the
electrified
railway
lines
north
of
Liverpool
.
Introduced:O
in:O
1940:O
and:O
withdrawn:O
by:O
1980:O
,:O
they:O
spent:O
the:O
whole:O
of:O
their:O
working:O
lives:O
on:O
the:O
electrified:O
railway:O
lines:O
north:O
of:O
Liverpool:location-GPE
.:O