[Talk-GB] Grouping related buildings in a relation

[Graham Stewart]

What is the correct way to group a collection of buildings into a
relation when they are all part of the same institution?

I traced (from OS StreetView) the seven buildings of the Queen Elizabeth
Hospital in Gateshead:
http://www.openstreetmap.org/?lat=54.93834&lon=-1.57941&zoom=17&layers=B000FTF

I've tagged each building as building=yes and placed them in the
relation.
Then I tagged the relation as amenity=hospital+building=yes+name=Queen
Elizabeth Hospital

But now Mapnik and Osmarender don't display a name or the hospital POI
icon, which rather defeats the purpose.

What is the usual approach to this?

The Wiki for amenity=hospital suggests:

"If you have a large hospital campus with multiple buildings, consider
combining them into a relation instead of tagging each individual
building to be a hospital"
-- http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dhospital

..which I thought was what I had done. Should I also add a POI node with
amenity=hospital somewhere amongst the buildings? That seems a bit
redundant.

Thanks,
GrahamS

PS I'm a new OSMer, so apologies if this is really obvious.