With no explanation, label each line with "O", "product-food", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Officially
,
the
recipe
for
Skyline
Chili
is
a
well-kept
family
secret
among
Lambrinides
'
surviving
children
,
and
the
recipe
is
kept
in
a
bank
vault
.
Officially:O
,:O
the:O
recipe:O
for:O
Skyline:product-food
Chili:product-food
is:O
a:O
well-kept:O
family:O
secret:O
among:O
Lambrinides:person-other
':O
surviving:O
children:O
,:O
and:O
the:O
recipe:O
is:O
kept:O
in:O
a:O
bank:O
vault:O
.:O