尝试定义1：1关系时多重性无效错误

Question

所以我有一个场景（在ASP.NET MVC中）要求我有四个表。其中三个需要与第一个表具有1：1的关系。当我尝试运行代码首次迁移来定义它时，我得到了这些错误：

One or more validation errors were detected during model generation:

ANA_ANASection2_Target: : Multiplicity is not valid in Role 'ANA_ANASection2_Target' in relationship 'ANA_ANASection2'. Because the Dependent Role properties are not the key properties, the upper bound of the multiplicity of the Dependent Role must be '*'.
ANA_ANASection3_Target: : Multiplicity is not valid in Role 'ANA_ANASection3_Target' in relationship 'ANA_ANASection3'. Because the Dependent Role properties are not the key properties, the upper bound of the multiplicity of the Dependent Role must be '*'.
ANA_ANASection4_Target: : Multiplicity is not valid in Role 'ANA_ANASection4_Target' in relationship 'ANA_ANASection4'. Because the Dependent Role properties are not the key properties, the upper bound of the multiplicity of the Dependent Role must be '*'.

如何正确激活这些关系？我不介意丢失数据，因为我们仍在开发中。

我的架构如下（我会尝试简化它）：

public class ANASection2
{
    [Key]
    public int ANASection2Id { get; set; }
    [ForeignKey("ANA")]
    public int ANAId { get; set; }
    [Required]
    public virtual ANA ANA { get; set; }
}

public class ANASection3
{
    [Key]
    public int ANASection3Id { get; set; }
    [ForeignKey("ANA")]
    public int ANAId { get; set; }
    [Required]
    public virtual ANA ANA { get; set; }
}

public class ANASection4
{
    [Key]
    public int ANASection4Id { get; set; }
    [ForeignKey("ANA")]
    public int ANAId { get; set; }
    [Required]
    public virtual ANA ANA { get; set; }
}

public class ANA
{
    public int ANAId { get; set; }
    [Required]
    public ANASection2 ANASection2 { get; set; }
    [Required]
    public ANASection3 ANASection3 { get; set; }
    [Required]
    public ANASection4 ANASection4 { get; set; }
}