1 <?xml version=
"1.0" encoding=
"utf-8"?>
2 <grammar xmlns=
"http://relaxng.org/ns/structure/1.0" xmlns:
a=
"http://relaxng.org/ns/compatibility/annotations/1.0" xmlns:
rng=
"http://relaxng.org/ns/structure/1.0" xmlns:
foo=
"foo">
4 <a:documentation a:
local=
"att">