With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
For
example
,
some
of
the
natural
pigments
that
produce
a
rich
yolk
color
are
xanthophylls
without
much
nutritional
value
,
rather
than
the
carotenoids
that
act
as
provitamin
A
in
the
body
.
For:O
example:O
,:O
some:O
of:O
the:O
natural:O
pigments:O
that:O
produce:O
a:O
rich:O
yolk:O
color:O
are:O
xanthophylls:other-biologything
without:O
much:O
nutritional:O
value:O
,:O
rather:O
than:O
the:O
carotenoids:other-biologything
that:O
act:O
as:O
provitamin:other-biologything
A:other-biologything
in:O
the:O
body:O
.:O