With no explanation, label each line with "O", "building-hotel", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
direct
descendant
of
earlier
cakes
known
as
American
pudding-cake
pie
and
Washington
pie
,
the
dessert
was
referred
to
as
chocolate
cream
pie
,
Parker
House
chocolate
cream
pie
,
and
finally
Boston
cream
pie
on
Parker
House
's
menus
.
A:O
direct:O
descendant:O
of:O
earlier:O
cakes:O
known:O
as:O
American:product-food
pudding-cake:product-food
pie:product-food
and:O
Washington:product-food
pie:product-food
,:O
the:O
dessert:O
was:O
referred:O
to:O
as:O
chocolate:product-food
cream:product-food
pie:product-food
,:O
Parker:product-food
House:product-food
chocolate:product-food
cream:product-food
pie:product-food
,:O
and:O
finally:O
Boston:product-food
cream:product-food
pie:product-food
on:O
Parker:building-hotel
House:building-hotel
's:O
menus:O
.:O