ElementValid8 165 B

1234567
  1. <!DOCTYPE doc [
  2. <!ELEMENT doc ((a, b)| (a, c))>
  3. <!ELEMENT a EMPTY>
  4. <!ELEMENT b (#PCDATA)>
  5. <!ELEMENT c (#PCDATA)>
  6. ]>
  7. <doc><a/><c> doc is non-deterministic </c></doc>