With no explanation, label each line with "O", "location-bodiesofwater", "location-other", "location-mountain", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
At
the
small
town
of
Canal
Flats
the
Kootenay
River
passes
within
of
Columbia
Lake
,
the
headwaters
of
the
Columbia
River
,
as
it
merges
into
the
Rocky
Mountain
Trench
along
the
eastern
foothills
of
the
Selkirk
Mountains
.
At:O
the:O
small:O
town:O
of:O
Canal:location-other
Flats:location-other
the:O
Kootenay:location-bodiesofwater
River:location-bodiesofwater
passes:O
within:O
of:O
Columbia:location-bodiesofwater
Lake:location-bodiesofwater
,:O
the:O
headwaters:O
of:O
the:O
Columbia:location-bodiesofwater
River:location-bodiesofwater
,:O
as:O
it:O
merges:O
into:O
the:O
Rocky:location-bodiesofwater
Mountain:location-bodiesofwater
Trench:location-bodiesofwater
along:O
the:O
eastern:O
foothills:O
of:O
the:O
Selkirk:location-mountain
Mountains:location-mountain
.:O