With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
case
was
the
first
confirmed
instance
in
Arizona
of
community
spread
,
or
where
the
source
of
the
infection
is
unknown
.
This:O
case:O
was:O
the:O
first:O
confirmed:O
instance:O
in:O
Arizona:location-GPE
of:O
community:O
spread:O
,:O
or:O
where:O
the:O
source:O
of:O
the:O
infection:O
is:O
unknown:O
.:O