With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
bakery
is
sometimes
credited
with
helping
to
start
a
1990s
``
cupcake
craze
''
.
The:O
bakery:O
is:O
sometimes:O
credited:O
with:O
helping:O
to:O
start:O
a:O
1990s:O
``:O
cupcake:O
craze:O
'':O
.:O