With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
river
divides
into
three
,
with
the
mill
race
forming
the
middle
branch
,
spanned
by
one
of
the
Sonning
Backwater
Bridges
just
downstream
of
the
mill
.
The:O
river:O
divides:O
into:O
three:O
,:O
with:O
the:O
mill:O
race:O
forming:O
the:O
middle:O
branch:O
,:O
spanned:O
by:O
one:O
of:O
the:O
Sonning:location-other
Backwater:location-other
Bridges:location-other
just:O
downstream:O
of:O
the:O
mill:O
.:O