The text in this document fully describes the image shown here however
the Alt text does not refer to this text.
The text in this document does not fully describe the complex image shown
here.
The text in this document fully describes the image shown here and the
Alt text refers to this text.
The text in this document does not fully describe the image.
(Description of image.)
The text in this document does not fully describe the image shown here
but the image contains a longdesc attribute linking to a text file that
does describe the image.