<!ELEMENT ObliqueSchema (group+)> <!ELEMENT group (property,value,presentation,options?,group*)> <!ELEMENT options (disabled|stoponhit|unique)*> <!ATTLIST ObliqueSchema version CDATA "1.0"> <!ELEMENT disabled EMPTY> <!ELEMENT stoponhit EMPTY> <!ELEMENT unique EMPTY> <!ELEMENT property (#PCDATA)> <!ELEMENT value (#PCDATA)> <!ELEMENT presentation (#PCDATA)>