With no explanation, label each line with "O", "location-bodiesofwater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
area
of
the
district
is
divided
between
the
drainage
basins
of
the
Western
Dvina
and
the
Dnieper
Rivers
.
The:O
area:O
of:O
the:O
district:O
is:O
divided:O
between:O
the:O
drainage:O
basins:O
of:O
the:O
Western:location-bodiesofwater
Dvina:location-bodiesofwater
and:O
the:O
Dnieper:location-bodiesofwater
Rivers:location-bodiesofwater
.:O