On Wed, 10 Feb 2010 13:48:38 -0800, Ranee at Arabian Knits wrote:

> In article >,
> Doug Freyburger > wrote:
>
>> Sweet is also both a taste and an
>> item.
>
> Not quite. Table salt is NaCl. Sweet has quite a range from
> strawberries to ice cream to table sugar and more. You couldn't put
> together a tube of sweet any more than you could put together a tube of
> sour.
>
> Regards,
> Ranee @ Arabian Knits

some would say citric acid (a.k.a. sour salt) would be a stand-in for your
hypothetical sour paste.

your pal,
blake