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 ":".
They
ran
on
the
BM
&
amp
;
LP
for
decades
and
remain
in
use
on
several
mining
railroads
in
the
Western
United
States
.
They:O
ran:O
on:O
the:O
BM:O
&:O
amp:O
;:O
LP:O
for:O
decades:O
and:O
remain:O
in:O
use:O
on:O
several:O
mining:O
railroads:O
in:O
the:O
Western:O
United:location-GPE
States:location-GPE
.:O