[Data-modeling] Protected Sites & U.S. National Register of Historic Places

[Tom Morris]

If anyone's interested in the Protected Sites domain, I'd appreciate
it if you could have a look at the recent discussions in

http://www.freebase.com/discuss/threads/protected_sites?domain=/protected_sites
http://www.freebase.com/view/guid/9202a8c04000641f800000000abe31ef

There's test data for over 4,000 sites (~110,000 facts) loaded at
http://usnris.sandbox-freebase.com/

There are two open questions that I'd like to get a decision on, but
I'm also interested in general feedback from anyone with knowledge or
an interest (including in related areas like architectural styles).

The open questions are:

1. Should the "nominator name" be bumped up to a top level Listed Site
designation instead of, or in additional to, the main listing
designation.  You can see the main designation and all it's sub
categories here
http://www.freebase.com/view/en/national_register_of_historic_places.
There are over a dozen categories/nominator names and the schema for
other countries such as the UK appears to just use a single top level
listing.  Jeff Prucher suggested bumping everything up to the top
level, but that doesn't really seem to line up with the way other
countries are done currently.

I'm open to either approach, but I'd like to nail it down.

2. Where should the enumeration for the reference number in the
National Park Service database go.  It's currently tied to a separate
type (http://usnris.freebase.com/type/schema/base/usnris/nris_listing),
but I just wanted to confirm that this shouldn't go on Listed Site
since noticed that Location has GNIS and GEOnet enumerations directly
on the base type.  Confirmation that the current approach is correct
before I load thousands of sites would be great.

Tom