With no explanation, label each line with "O", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Over
the
years
,
Merlot
has
spawned
a
color
mutation
that
is
used
commercially
,
a
pink-skinned
variety
known
as
``
Merlot
gris
``
.
Over:O
the:O
years:O
,:O
Merlot:product-food
has:O
spawned:O
a:O
color:O
mutation:O
that:O
is:O
used:O
commercially:O
,:O
a:O
pink-skinned:O
variety:O
known:O
as:O
``:O
Merlot:product-food
gris:product-food
``:O
.:O