Re: example SQL mapping to direct graph

On Wed, Jan 19, 2011 at 10:29 AM, Eric Prud'hommeaux <eric@w3.org> wrote:

> At the end of 2006, Fred Zemke interceded to keep the
> SPARQL semantics from having ambiguous cardinality, which cost months
> but gave us invaluable definition in the semantics.
>

Eric - Can you elaborate on this and/or provide a link to what you are
referring to? In particular I am trying to understand the cardinality
semantics defined by SPARQL.

Thank you.
-David McNeil