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
bridge
over
the
River
Yeo
is
medieval
in
origin
,
but
was
probably
reshaped
in
the
18th
century
.
The:O
bridge:O
over:O
the:O
River:location-bodiesofwater
Yeo:location-bodiesofwater
is:O
medieval:O
in:O
origin:O
,:O
but:O
was:O
probably:O
reshaped:O
in:O
the:O
18th:O
century:O
.:O