[Tagging] Builders' Merchants -> Timber Merchant

[Liz]

On Fri, 25 Jun 2010, Craig Wallace wrote:
> Industrial supplies is a more generic term, which can include builder's 
> merchants, or timber yards, or agricultural supplies, or a variety of 
> other industries.
> So a tag shop=industrial_supplies can cover all of these, plus an 
> appropriate sub-tag to specify what sort.

I think that we are now advancing the discussion
We would have to move a few agricultural suppliers to a new subgroup, but i 
see the benefits outweighing the disadvantages.
Certainly I've put a few agricultural suppliers on the map, but can't recall 
how I tagged them.