Folder:
  parent:
    Name: ParentFolder
  subfolder:
    Name: SubFolder
    Parent: =>Folder.parent
Image:
  image1:
    Name: myimage.jpg
  image2:
    Name: myimage.jpg
    ParentID: =>Folder.subfolder
File:
  file1:
    Name: anotherfile.jpg
  file2:
    Name: file.jpg
    ParentID: =>Folder.parent
  file3:
    Name: picture.jpg
    ParentID: =>Folder.subfolder