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
Landwasser
Viaduct
carries
a
single
railway
track
,
which
has
a
gradient
of
2
percent
across
the
structure
.
The:O
Landwasser:building-other
Viaduct:building-other
carries:O
a:O
single:O
railway:O
track:O
,:O
which:O
has:O
a:O
gradient:O
of:O
2:O
percent:O
across:O
the:O
structure:O
.:O