With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Oldstreet
400
V
substation
is
an
intermediate
substation
on
this
line
.
The:O
Oldstreet:building-other
400:building-other
V:building-other
substation:O
is:O
an:O
intermediate:O
substation:O
on:O
this:O
line:O
.:O