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 ":".
After
it
is
joined
on
its
right
bank
by
the
Crocodile
River
it
is
known
as
the
Limpopo
River
.
After:O
it:O
is:O
joined:O
on:O
its:O
right:O
bank:O
by:O
the:O
Crocodile:location-bodiesofwater
River:location-bodiesofwater
it:O
is:O
known:O
as:O
the:O
Limpopo:location-bodiesofwater
River:location-bodiesofwater
.:O