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 ":".
Landmark
river
tourism
,
the
Canal
de
Garonne
is
an
extension
of
the
Canal
du
Midi
(
which
together
form
the
``
Canal
des
Deux-Mers
``
between
the
Atlantic
and
the
Mediterranean
)
.
Landmark:O
river:O
tourism:O
,:O
the:O
Canal:location-bodiesofwater
de:location-bodiesofwater
Garonne:location-bodiesofwater
is:O
an:O
extension:O
of:O
the:O
Canal:location-bodiesofwater
du:location-bodiesofwater
Midi:location-bodiesofwater
(:O
which:O
together:O
form:O
the:O
``:O
Canal:location-bodiesofwater
des:location-bodiesofwater
Deux-Mers:location-bodiesofwater
``:O
between:O
the:O
Atlantic:location-bodiesofwater
and:O
the:O
Mediterranean:location-bodiesofwater
):O
.:O