<xsd:schema targetNamespace="urn:schemas-microsoft-com:office:powerpoint" xmlns="urn:schemas-microsoft-com:office:powerpoint" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <xsd:element name="iscomment" type="CT_Empty">
    <xsd:annotation>
      <xsd:documentation>Ink Annotation Flag</xsd:documentation>
    </xsd:annotation>
  </xsd:element>
  <xsd:element name="textdata" type="CT_Rel">
    <xsd:annotation>
      <xsd:documentation>VML Diagram Text</xsd:documentation>
    </xsd:annotation>
  </xsd:element>
  <xsd:complexType name="CT_Empty" />
  <xsd:complexType name="CT_Rel">
    <xsd:attribute name="id" type="xsd:string">
      <xsd:annotation>
        <xsd:documentation>Text Reference</xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
  </xsd:complexType>
</xsd:schema>

• CT_Empty
• CT_Rel

• iscomment
• textdata