dtd xml válido

[Facha]

tengo el siguiente DTD y no consigo crear un xml valido me podrian dar una mano
muchas gracias

<!ELEMENT Response (QueryResult*)>

<!ATTLIST Response ReturnCode CDATA #REQUIRED
CodeExplanation CDATA #IMPLIED>

<!ELEMENT QueryResult (UserBasicData? | UserCompleteResult? | ProfileResult? | ContestResult* | VideoResult?)>

<!ELEMENT UserCompleteResult (UserBasicData, UserExtendedData)>

<!ATTLIST UserBasicData UserID CDATA #REQUIRED
Name CDATA #REQUIRED
LastName CDATA #REQUIRED
Email CDATA #REQUIRED
MemberID CDATA #REQUIRED>

<!ATTLIST UserExtendedData Address CDATA #REQUIRED
Suite CDATA #IMPLIED
City CDATA #REQUIRED
Gender (Male | Female)
Birthdate CDATA #REQUIRED
USAResident (Yes | No)
ContestRules (Yes | No)
PrivacyPolicity (Yes | No)>

<!ELEMENT ProfileResult (ProfileBasicData)>

<!ATTLIST ProfileBasicData StoryID CDATA
StoryName CDATA
StoryImgURL CDATA
PlaceMatsID CDATA
PlaceMatsURL CDATA >

<!ELEMENT MyAccount (UserBasicData, UserExtendedData)>