export declare enum ProductRelation {
    Unspecified,
    Includes,
    IsPartOf,
    Replaces,
    HasCompanionProduct,
    ReplacedBy,
    AlternativeFormat,
    HasAncillaryProduct,
    IsAncillaryTo,
    IsRemainderedAs,
    IsRemainderOf,
    IsOtherLanguageVersionOf,
    PublisherSuggestedAlternative,
    EpublicationBasedOn,
    PodReplacementFor,
    ReplacedByPod,
    IsSpecialEditionOf,
    HasSpecialEdition,
    IsPreboundEditionOf,
    IsOriginalOfPreboundEdition,
    ProductBySameAuthor,
    SimilarProduct,
    IsFacsimileOf,
    IsOriginalOfFacsimile,
    IsLicenseFor,
    ElectronicVersionAvailableAs,
    EnhancedVersionAvailableAs,
    BasicVersionAvailableAs,
    ProductInSameCollection,
    HasAlternativeInADifferentMarketSector,
    HasEquivalentIntendedForADifferentMarket,
    HasAlternativeIntendedForDifferentMarket,
    Cites,
    IsCitedBy,
    IsSignedVersionOf,
    HasSignedVersion,
    HasRelatedStudentMaterial,
    HasRelatedTeacherMaterial,
    SomeContentSharedWith,
    IsLaterEditionOfFirstEdition,
    AdaptedFrom,
    AdaptedAs,
    LinkedProductOffer
}