With no explanation, label each line with "location-GPE", "O", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Lou
Malnati
's
is
a
prototypical
Chicago
style
pizza
,
and
its
deep
dish
pizza
is
generally
referred
to
as
a
``
pie
.
''
Lou:product-food
Malnati:product-food
's:O
is:O
a:O
prototypical:O
Chicago:location-GPE
style:O
pizza:O
,:O
and:O
its:O
deep:O
dish:O
pizza:O
is:O
generally:O
referred:O
to:O
as:O
a:O
``:O
pie:O
.:O
'':O