7.5 http://www.microsoft.com/sharepoint/search/KnownTypes/2008/08 Schema

 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema xmlns:q2="http://www.microsoft.com/sharepoint/search/KnownTypes/2008/08" elementFormDefault="qualified" targetNamespace="http://www.microsoft.com/sharepoint/search/KnownTypes/2008/08" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:simpleType name="SearchServiceApplicationFaultType">
     <xs:restriction base="xs:string">
       <xs:enumeration value="SpecialTerm_NotFound"/>
       <xs:enumeration value="SpecialTerm_DuplicateError"/>
       <xs:enumeration value="Synonym_NotFound"/>
       <xs:enumeration value="BestBet_NotFound"/>
       <xs:enumeration value="BestBet_OrderDuplicationError"/>
       <xs:enumeration value="AllNoiseQuery"/>
       <xs:enumeration value="SearchServiceNotFound"/>
       <xs:enumeration value="QueryMalformed"/>
       <xs:enumeration value="ScopeNotFound"/>
       <xs:enumeration value="InvalidProperty"/>
       <xs:enumeration value="OnlyExcludedTerms"/>
       <xs:enumeration value="RankingModelNotFound"/>
       <xs:enumeration value="UnSupportedTopology"/>
       <xs:enumeration value="FASTSearchQuery"/>
       <xs:enumeration value="Timeout"/>
       <xs:enumeration value="ExtendedConnectorApplicaion"/>
       <xs:enumeration value="PartitionOptionsMismatch"/>
       <xs:enumeration value="TooComplexQueryException"/>
       <xs:enumeration value="QueryThrottled"/>
       <xs:enumeration value="InternalError"/>
       <xs:enumeration value="QueryTransformInvalidProperty"/>
       <xs:enumeration value="QueryConfigurationImportException"/>
       <xs:enumeration value="ApplicationSpecific"/>
       <xs:enumeration value="DiscoveryFederatedSourceNotFound"/>
       <xs:enumeration value="RemoteSharepointSourceFault"/>
       <xs:enumeration value="TenantSiteCollectionMismatchException"/>
       <xs:enumeration value="InvalidNameException"/>
       <xs:enumeration value="InvalidPropertyTypeException"/>
       <xs:enumeration value="CouldNotModifySchemaException"/>
       <xs:enumeration value="InvalidMappingException"/>
       <xs:enumeration value="ObjectNotFoundException"/>
       <xs:enumeration value="PropertyIsReadOnlyException"/>
       <xs:enumeration value="PropertyCannotHaveMappingsException"/>
       <xs:enumeration value="InvalidManagedPropertyValue"/>
       <xs:enumeration value="ArgumentNullException"/>
       <xs:enumeration value="UnauthorizedAccessException"/>
       <xs:enumeration value="DatabaseException"/>
       <xs:enumeration value="SchemaExportException"/>
       <xs:enumeration value="SchemaImportException"/>
       <xs:enumeration value="NotSupported"/>
       <xs:enumeration value="QueryPropertyOutOfRange"/>
     </xs:restriction>
   </xs:simpleType>
   <xs:element name="SearchServiceApplicationFaultType" nillable="true" type="q2:SearchServiceApplicationFaultType"/>
 </xs:schema>