ElementValid7 165 B

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  1. <!DOCTYPE doc [
  2. <!ELEMENT doc ((a | b)* , c+, a, b?, c, a?)>
  3. <!ELEMENT a EMPTY>
  4. <!ELEMENT b (#PCDATA)>
  5. <!ELEMENT c (#PCDATA)>
  6. ]>
  7. <doc><a/><b/><a/><c/><c/><a/></doc>