"2. The XDI address of the predicate by the ampersand character “&”."
=>
"2. The XDI address of the predicate MUST only be the ampersand character “&”."
"2. The XDI address of the predicate by the ampersand character “&”."
=>
"2. The XDI address of the predicate MUST only be the ampersand character “&”."
Changed "by" to "is". Sending to Drummond for verification.