With no explanation, label each line with "O", "location-mountain", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Salt
Range
contains
the
great
mines
of
Mayo
,
[
[
Khewra
Salt
Mine
]
]
,
[
[
Warcha
]
]
and
[
[
Kalabagh
]
]
,
which
yield
vast
supplies
of
salt
.
The:location-mountain
Salt:location-mountain
Range:location-mountain
contains:O
the:O
great:O
mines:O
of:O
Mayo:O
,:O
[:O
[:O
Khewra:O
Salt:O
Mine:O
]:O
]:O
,:O
[:O
[:O
Warcha:O
]:O
]:O
and:O
[:O
[:O
Kalabagh:O
]:O
]:O
,:O
which:O
yield:O
vast:O
supplies:O
of:O
salt:O
.:O