With no explanation, label each line with "location-GPE", "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
town
has
established
a
tourist
attraction
The
Dad
's
Army
Trail
,
which
guides
fans
of
the
show
through
Thetford
to
all
the
major
filming
locations
and
places
of
significance
.
The:O
town:O
has:O
established:O
a:O
tourist:O
attraction:O
The:O
Dad:location-other
's:location-other
Army:location-other
Trail:location-other
,:O
which:O
guides:O
fans:O
of:O
the:O
show:O
through:O
Thetford:location-GPE
to:O
all:O
the:O
major:O
filming:O
locations:O
and:O
places:O
of:O
significance:O
.:O