With no explanation, label each line with "location-GPE", "O", "location-bodiesofwater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Cromwell
lay
at
the
confluence
of
the
Clutha
River
and
Kawarau
River
,
which
was
noted
for
the
difference
between
the
colours
of
the
waters
of
the
two
rivers
and
also
for
the
historic
bridge
at
the
convergence
of
the
two
.
Cromwell:location-GPE
lay:O
at:O
the:O
confluence:O
of:O
the:O
Clutha:location-bodiesofwater
River:location-bodiesofwater
and:O
Kawarau:location-bodiesofwater
River:location-bodiesofwater
,:O
which:O
was:O
noted:O
for:O
the:O
difference:O
between:O
the:O
colours:O
of:O
the:O
waters:O
of:O
the:O
two:O
rivers:O
and:O
also:O
for:O
the:O
historic:O
bridge:O
at:O
the:O
convergence:O
of:O
the:O
two:O
.:O