[XMP, XMP-x, Document] xmptk - XMP Toolkit: Image::ExifTool 9.97
[XMP, XMP-xxxx, Unknown] xxxx:Test - Test: trout
[XMP, XMP-tmp0, Unknown] tmp0:Test - Test: tabby
[XMP, XMP-xmp, Image] Rating - Rating: 2
[XMP, XMP-dc, Image] subject - Subject: x
[XMP, XMP-dc, Image] title - Title: a title