[Data-modeling] Products with ingredients

[Spencer Kelly]

>
>
> Based on the sandbox examples, this schema seems to use "variety of" for
> two types of relationships:
>     1) variety of, e.g. brown rice is a "variety of" rice
>     2) derived from, e.g. rice flour is "derived from" rice
>
> The former relationship is categorical, the latter relates to
> post-processing.
>

ha, ya faye, this is exactly what happened in developing the materials
type.  the two types of relationships you mentioned are technically the
same, but are at a different granularity. 'variety of' just means they were
'derived from' the same thing at some point of time...
...
the problem is that this is unrealistic to model - the differences in all
the ingredients by the specific processes ('derived from') that made them,
like 'milled for 3.5 hours and baked with bicarbonate' or something.
so 'derived from', only applies to a few topics, and should be handled with
the 'process' type, though i think this type still needs some work.
(breath)
i still vote that 'Variety of' and 'Generalisation of' should be mapped with
the materials type. It will just mean renaming its properties... and its
already a commons type. the distinction between a material and an product
ingredient can be handled with our
food<http://www.sandbox-freebase.com/view/food/food>type.

one more note, will this type interact with
dish<http://www.sandbox-freebase.com/type/schema/food/dish?domain=%2Ffood>
?
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