"Group" by column value?

[Jon Sweet]

Say I have data like this:

frog	amphibian
chicken	bird
dog	mammal
cat	mammal
whale	mammal


Is there any way I can transform my outline (or, in my case, get a  
copy that's been transformed) where OO has done the equivalent of  
executing a Reorganize->Group on all items grouped by a given  
column's value (in my case, column 2), and used the text of that  
column as the next item's text.

For example, turning the above into:

amphibian
   -frog
bird
   -chicken
mammal
   -dog
   -cat
   -whale


The hidden assumptions I'm making are:
* column 1 is an outline column;
* column 2 is a Pop-Up List -- it provides for one metadata/attribute.
* column 2 has a value defined *only* for top-level outline items.   
Anything under that top level is notes on each top-level item.

Use Case: I was asked to produce a handout for a meeting I'd be  
giving based on my outline, where the top-level items were something  
like "project deliverables".  I'd used the outlining facilities to  
capture thoughts/notes on each deliverable, and then used additional  
columns to capture metadata for each deliverable, e.g. "product  
version", "project", "customer"


The short answer, I suspect, is "No, those hidden assumptions you're  
making are why it's not a part of the general product.  So why don't  
you write an AppleScript?"

I'm only writing to the group because I thought it was an interesting  
problem that perhaps someone's faced before; and can therefore  
produce said AppleScript.  ;-)